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Pesquisa : G01.750.770.776 [Categoria DeCS]
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  1 / 11030 MEDLINE  
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[PMID]:29384607
[Au] Autor:Hamilton-Fletcher G; Wright TD; Ward J
[Ti] Título:Cross-Modal Correspondences Enhance Performance on a Colour-to-Sound Sensory Substitution Device.
[So] Source:Multisens Res;29(4-5):337-63, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Visual sensory substitution devices (SSDs) can represent visual characteristics through distinct patterns of sound, allowing a visually impaired user access to visual information. Previous SSDs have avoided colour and when they do encode colour, have assigned sounds to colour in a largely unprincipled way. This study introduces a new tablet-based SSD termed the 'Creole' (so called because it combines tactile scanning with image sonification) and a new algorithm for converting colour to sound that is based on established cross-modal correspondences (intuitive mappings between different sensory dimensions). To test the utility of correspondences, we examined the colour­sound associative memory and object recognition abilities of sighted users who had their device either coded in line with or opposite to sound­colour correspondences. Improved colour memory and reduced colour-errors were made by users who had the correspondence-based mappings. Interestingly, the colour­sound mappings that provided the highest improvements during the associative memory task also saw the greatest gains for recognising realistic objects that also featured these colours, indicating a transfer of abilities from memory to recognition. These users were also marginally better at matching sounds to images varying in luminance, even though luminance was coded identically across the different versions of the device. These findings are discussed with relevance for both colour and correspondences for sensory substitution use.
[Mh] Termos MeSH primário: Percepção Auditiva/fisiologia
Percepção de Cores/fisiologia
Auxiliares Sensoriais
Som
[Mh] Termos MeSH secundário: Adolescente
Algoritmos
Feminino
Seres Humanos
Masculino
Limiar Sensorial
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


  2 / 11030 MEDLINE  
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[PMID]:29384606
[Au] Autor:Asaoka R; Gyoba J
[Ti] Título:Sounds Modulate the Perceived Duration of Visual Stimuli via Crossmodal Integration.
[So] Source:Multisens Res;29(4-5):319-35, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Previous studies have shown that the perceived duration of visual stimuli can be strongly distorted by auditory stimuli presented simultaneously. In this study, we examine whether sounds presented separately from target visual stimuli alter the perceived duration of the target's presentation. The participants' task was to classify the duration of the target visual stimuli as perceived by them into four categories. Our results demonstrate that a sound presented before and after a visual target increases or decreases the perceived visual duration depending on the inter-stimulus interval between the sounds and the visual stimulus. In addition, three tones presented before and after a visual target did not increase or decrease the perceived visual duration. This indicates that auditory perceptual grouping prevents intermodal perceptual grouping, and eliminates crossmodal effects. These findings suggest that the auditory­visual integration, rather than a high arousal state caused by the presentation of the preceding sound, can induce distortions of perceived visual duration, and that inter- and intramodal perceptual grouping plays an important role in crossmodal time perception. These findings are discussed with reference to the Scalar Expectancy Theory.
[Mh] Termos MeSH primário: Percepção Auditiva/fisiologia
Desempenho Psicomotor/fisiologia
Som
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Estimulação Acústica
Adulto
Feminino
Seres Humanos
Masculino
Estimulação Luminosa
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


  3 / 11030 MEDLINE  
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[PMID]:29465568
[Au] Autor:Thoma MV; Mewes R; Nater UM
[Ad] Endereço:Psychopathology and Clinical Intervention, Department of Psychology, University of Zurich, Switzerland.
[Ti] Título:Preliminary evidence: the stress-reducing effect of listening to water sounds depends on somatic complaints: A randomized trial.
[So] Source:Medicine (Baltimore);97(8):e9851, 2018 Feb.
[Is] ISSN:1536-5964
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Listening to natural sounds is applied in health contexts in order to induce relaxation. However, it remains unclear whether this effect is equally efficacious in all individuals or whether it depends on interindividual differences. Given that individuals differ in how they are impaired by somatic complaints, we investigated whether somatic complaints moderate the stress-reducing effect of listening to water sounds. METHODS: Sixty healthy women (Mage = 25 years) were randomly allocated to 3 different conditions (listening to water sounds, a relaxing piece of music, or no auditory stimulus: n = 20 per condition) for 10 minutes before they were exposed to a standardized psychosocial stress task. Salivary cortisol was assessed before, during, and after the stress task. For binary logistic regression analyses, participants were divided into 2 groups: 1 group with a high salivary cortisol release and 1 group with low cortisol release. The Freiburg Complaints Inventory was used to assess occurrence of somatic complaints. RESULTS: A significant moderating effect of somatic complaints on cortisol secretion was found in the group listening to water sounds (χ(1) = 5.87, P < .015) but not in the other 2 groups, explaining 35.7% of the variance and correctly classifying 78.9% of the cases. CONCLUSION: The stress-reducing effect of listening to water sounds appears to depend on the occurrence of somatic complaints. This effect was not found in the music or silence condition. Individuals with somatic complaints may benefit from other, potentially more powerful forms of stress-reducing interventions, that is, combinations of visual and auditory stimuli. TRIAL REGISTRATION: not applicable (pilot study).
[Mh] Termos MeSH primário: Terapia de Relaxamento/métodos
Som
Estresse Psicológico/prevenção & controle
[Mh] Termos MeSH secundário: Adulto
Área Sob a Curva
Feminino
Seres Humanos
Hidrocortisona/metabolismo
Música/psicologia
Saliva/metabolismo
Água
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
059QF0KO0R (Water); WI4X0X7BPJ (Hydrocortisone)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180227
[Lr] Data última revisão:
180227
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:180222
[St] Status:MEDLINE
[do] DOI:10.1097/MD.0000000000009851


  4 / 11030 MEDLINE  
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[PMID]:29346430
[Au] Autor:Taylor TE; Lacalle Muls H; Costello RW; Reilly RB
[Ad] Endereço:Trinity Centre for Bioengineering, Trinity College Dublin, The University of Dublin, Dublin, Ireland.
[Ti] Título:Estimation of inhalation flow profile using audio-based methods to assess inhaler medication adherence.
[So] Source:PLoS One;13(1):e0191330, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Asthma and chronic obstructive pulmonary disease (COPD) patients are required to inhale forcefully and deeply to receive medication when using a dry powder inhaler (DPI). There is a clinical need to objectively monitor the inhalation flow profile of DPIs in order to remotely monitor patient inhalation technique. Audio-based methods have been previously employed to accurately estimate flow parameters such as the peak inspiratory flow rate of inhalations, however, these methods required multiple calibration inhalation audio recordings. In this study, an audio-based method is presented that accurately estimates inhalation flow profile using only one calibration inhalation audio recording. Twenty healthy participants were asked to perform 15 inhalations through a placebo Ellipta™ DPI at a range of inspiratory flow rates. Inhalation flow signals were recorded using a pneumotachograph spirometer while inhalation audio signals were recorded simultaneously using the Inhaler Compliance Assessment device attached to the inhaler. The acoustic (amplitude) envelope was estimated from each inhalation audio signal. Using only one recording, linear and power law regression models were employed to determine which model best described the relationship between the inhalation acoustic envelope and flow signal. Each model was then employed to estimate the flow signals of the remaining 14 inhalation audio recordings. This process repeated until each of the 15 recordings were employed to calibrate single models while testing on the remaining 14 recordings. It was observed that power law models generated the highest average flow estimation accuracy across all participants (90.89±0.9% for power law models and 76.63±2.38% for linear models). The method also generated sufficient accuracy in estimating inhalation parameters such as peak inspiratory flow rate and inspiratory capacity within the presence of noise. Estimating inhaler inhalation flow profiles using audio based methods may be clinically beneficial for inhaler technique training and the remote monitoring of patient adherence.
[Mh] Termos MeSH primário: Inaladores de Pó Seco
Adesão à Medicação/estatística & dados numéricos
Som
[Mh] Termos MeSH secundário: Adulto
Inaladores de Pó Seco/utilização
Feminino
Seres Humanos
Masculino
Ruído
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180119
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191330


  5 / 11030 MEDLINE  
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[PMID]:29385174
[Au] Autor:Kumeta M; Takahashi D; Takeyasu K; Yoshimura SH
[Ad] Endereço:Graduate School of Biostudies, Kyoto University, Kyoto, Japan.
[Ti] Título:Cell type-specific suppression of mechanosensitive genes by audible sound stimulation.
[So] Source:PLoS One;13(1):e0188764, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Audible sound is a ubiquitous environmental factor in nature that transmits oscillatory compressional pressure through the substances. To investigate the property of the sound as a mechanical stimulus for cells, an experimental system was set up using 94.0 dB sound which transmits approximately 10 mPa pressure to the cultured cells. Based on research on mechanotransduction and ultrasound effects on cells, gene responses to the audible sound stimulation were analyzed by varying several sound parameters: frequency, wave form, composition, and exposure time. Real-time quantitative PCR analyses revealed a distinct suppressive effect for several mechanosensitive and ultrasound-sensitive genes that were triggered by sounds. The effect was clearly observed in a wave form- and pressure level-specific manner, rather than the frequency, and persisted for several hours. At least two mechanisms are likely to be involved in this sound response: transcriptional control and RNA degradation. ST2 stromal cells and C2C12 myoblasts exhibited a robust response, whereas NIH3T3 cells were partially and NB2a neuroblastoma cells were completely insensitive, suggesting a cell type-specific response to sound. These findings reveal a cell-level systematic response to audible sound and uncover novel relationships between life and sound.
[Mh] Termos MeSH primário: Estimulação Acústica
Regulação da Expressão Gênica
Mecanotransdução Celular/genética
Som
[Mh] Termos MeSH secundário: Animais
Linhagem Celular
Camundongos
Reação em Cadeia da Polimerase em Tempo Real
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188764


  6 / 11030 MEDLINE  
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[PMID]:29317624
[Au] Autor:Clemens J; Ozeri-Engelhard N; Murthy M
[Ad] Endereço:Princeton Neuroscience Institute, Princeton University, Princeton, NJ, 08540, USA.
[Ti] Título:Fast intensity adaptation enhances the encoding of sound in Drosophila.
[So] Source:Nat Commun;9(1):134, 2018 01 09.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:To faithfully encode complex stimuli, sensory neurons should correct, via adaptation, for stimulus properties that corrupt pattern recognition. Here we investigate sound intensity adaptation in the Drosophila auditory system, which is largely devoted to processing courtship song. Mechanosensory neurons (JONs) in the antenna are sensitive not only to sound-induced antennal vibrations, but also to wind or gravity, which affect the antenna's mean position. Song pattern recognition, therefore, requires adaptation to antennal position (stimulus mean) in addition to sound intensity (stimulus variance). We discover fast variance adaptation in Drosophila JONs, which corrects for background noise over the behaviorally relevant intensity range. We determine where mean and variance adaptation arises and how they interact. A computational model explains our results using a sequence of subtractive and divisive adaptation modules, interleaved by rectification. These results lay the foundation for identifying the molecular and biophysical implementation of adaptation to the statistics of natural sensory stimuli.
[Mh] Termos MeSH primário: Adaptação Fisiológica
Antenas de Artrópodes/fisiologia
Drosophila/fisiologia
Mecanorreceptores/fisiologia
Vocalização Animal
[Mh] Termos MeSH secundário: Animais
Feminino
Audição/fisiologia
Mecanotransdução Celular
Comportamento Sexual Animal
Som
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180111
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02453-9


  7 / 11030 MEDLINE  
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[PMID]:28705533
[Au] Autor:Agounad S; Aassif EH; Khandouch Y; Maze G; Décultot D
[Ad] Endereço:Laboratory of Metrology and Information Processing, Department of Physics, Ibn Zohr University, B.P. 8106, 80000 Agadir, Morocco. Electronic address: said.agounad@edu.uiz.ac.ma.
[Ti] Título:Characterization and prediction of the backscattered form function of an immersed cylindrical shell using hybrid fuzzy clustering and bio-inspired algorithms.
[So] Source:Ultrasonics;83:222-235, 2018 Feb.
[Is] ISSN:1874-9968
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The acoustic scattering of a plane wave by an elastic cylindrical shell is studied. A new approach is developed to predict the form function of an immersed cylindrical shell of the radius ratio b/a ('b' is the inner radius and 'a' is the outer radius). The prediction of the backscattered form function is investigated by a combined approach between fuzzy clustering algorithms and bio-inspired algorithms. Four famous fuzzy clustering algorithms: the fuzzy c-means (FCM), the Gustafson-Kessel algorithm (GK), the fuzzy c-regression model (FCRM) and the Gath-Geva algorithm (GG) are combined with particle swarm optimization and genetic algorithm. The symmetric and antisymmetric circumferential waves A, S , A , S and S are investigated in a reduced frequency (k a) range extends over 0.1
[Mh] Termos MeSH primário: Algoritmos
Biomimética/métodos
Lógica Fuzzy
Modelos Teóricos
Espalhamento de Radiação
Som
[Mh] Termos MeSH secundário: Simulação por Computador
Dose de Radiação
Radiometria/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170715
[St] Status:MEDLINE


  8 / 11030 MEDLINE  
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[PMID]:28453970
[Au] Autor:Yamamoto R; Koyama D; Matsukawa M
[Ad] Endereço:Faculty of Life and Medical Sciences, Doshisha University, 1-3 Tataramiyakodani, Kyotanabe, Kyoto 610-0321, Japan; Wave Electronics Research Center, Doshisha University, 1-3 Tataramiyakodani, Kyotanabe, Kyoto 610-0321, Japan.
[Ti] Título:On-chip ultrasonic manipulation of microparticles by using the flexural vibration of a glass substrate.
[So] Source:Ultrasonics;79:81-86, 2017 08.
[Is] ISSN:1874-9968
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:As biotechnology develops, techniques for manipulating and separating small particles such as cells and DNA are required in the life sciences. This paper investigates on-chip manipulation of microparticles in small channels by using ultrasonic vibration. The chip consists of a rectangular glass substrate with a cross-shaped channel (cross-section: 2.0×2.0mm ) and four lead zirconate titanate transducers attached to the substrate's four corners. To efficiently generate the flexural vibration mode on the chip, we used finite element analysis to optimize the configurations of the glass substrate and transducers. Silicon carbide microparticles with an average diameter of 50µm were immersed in the channels, which were filled with ethanol. By applying an in-phase input voltage of 75V at 225kHz to the four transducers, a flexural vibration mode with a wavelength of 13mm was excited on the glass substrate, and this flexural vibration generated an acoustic standing wave in the channel. The particles could be trapped at the nodal lines of the standing wave. By controlling the driving phase difference between the two pairs of transducers, the vibrational distribution of the substrate could be moved along the channels so that the acoustic standing wave moved in the same direction. The trapped particles could be manipulated by the two-phase drive, and the transport direction could be switched at the junction of the channels orthogonally by changing the combination of the driving condition to four transducers.
[Mh] Termos MeSH primário: Vidro/química
Chumbo/química
Titânio/química
Ultrassom/métodos
Zircônio/química
[Mh] Termos MeSH secundário: Análise de Elementos Finitos
Tamanho da Partícula
Som
Vibração
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
12626-81-2 (lead titanate zirconate); 2P299V784P (Lead); C6V6S92N3C (Zirconium); D1JT611TNE (Titanium)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180118
[Lr] Data última revisão:
180118
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE


  9 / 11030 MEDLINE  
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[PMID]:29253030
[Au] Autor:Shim HJ; An YH; Kim DH; Yoon JE; Yoon JH
[Ad] Endereço:Department of Otorhinolaryngology-Head and Neck Surgery, Eulji University School of Medicine, Eulji Medical Center, Seoul, Korea.
[Ti] Título:Comparisons of auditory brainstem response and sound level tolerance in tinnitus ears and non-tinnitus ears in unilateral tinnitus patients with normal audiograms.
[So] Source:PLoS One;12(12):e0189157, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Recently, "hidden hearing loss" with cochlear synaptopathy has been suggested as a potential pathophysiology of tinnitus in individuals with a normal hearing threshold. Several studies have demonstrated that subjects with tinnitus and normal audiograms show significantly reduced auditory brainstem response (ABR) wave I amplitudes compared with control subjects, but normal wave V amplitudes, suggesting increased central auditory gain. We aimed to reconfirm the "hidden hearing loss" theory through a within-subject comparison of wave I and wave V amplitudes and uncomfortable loudness level (UCL), which might be decreased with increased central gain, in tinnitus ears (TEs) and non-tinnitus ears (NTEs). SUBJECTS AND METHODS: Human subjects included 43 unilateral tinnitus patients (19 males, 24 females) with normal and symmetric hearing thresholds and 18 control subjects with normal audiograms. The amplitudes of wave I and V from the peak to the following trough were measured twice at 90 dB nHL and we separately assessed UCLs at 500 Hz and 3000 Hz pure tones in each TE and NTE. RESULTS: The within-subject comparison between TEs and NTEs showed no significant differences in wave I and wave V amplitude, or wave V/I ratio in both the male and female groups. Individual data revealed increased V/I amplitude ratios > mean + 2 SD in 3 TEs, but not in any control ears. We found no significant differences in UCL at 500 Hz or 3000 Hz between the TEs and NTEs, but the UCLs of both TEs and NTEs were lower than those of the control ears. CONCLUSIONS: Our ABR data do not represent meaningful evidence supporting the hypothesis of cochlear synaptopathy with increased central gain in tinnitus subjects with normal audiograms. However, reduced sound level tolerance in both TEs and NTEs might reflect increased central gain consequent on hidden synaptopathy that was subsequently balanced between the ears by lateral olivocochlear efferents.
[Mh] Termos MeSH primário: Audiometria de Tons Puros
Limiar Auditivo/fisiologia
Potenciais Evocados Auditivos do Tronco Encefálico/fisiologia
Som
Zumbido/fisiopatologia
[Mh] Termos MeSH secundário: Adulto
Estudos de Casos e Controles
Orelha/fisiopatologia
Feminino
Seres Humanos
Masculino
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180108
[Lr] Data última revisão:
180108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189157


  10 / 11030 MEDLINE  
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[PMID]:29216205
[Au] Autor:Dieze A; Stephan T; Hilzendegen C; Stroebele-Benschop N
[Ad] Endereço:Institute of Nutritional Medicine, Department of Nutritional Psychology, University of Hohenheim, Stuttgart, Germany.
[Ti] Título:The impact of viewing a video with and without head phones on snack intake: A pilot study.
[So] Source:PLoS One;12(12):e0188457, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Research shows that many small changes to the environment impact one's eating behavior. The aim of this study was to examine whether the type of audio transmission would affect snack intake depending on the degree of immersion. A sample of 174 university students were randomized to either viewing a movie wearing headphones or listening over loud speakers while consuming a snack of their choice. Significant differences were found with more snacks consumed in the group without headphones compared to the group wearing headphones. Particularly women tend to eat less (about 10% of the offered snack less) when wearing headphones while viewing a movie. The results seem to indicate that audio transmission mode might impact eating behavior.
[Mh] Termos MeSH primário: Filmes Cinematográficos
Lanches
Som
[Mh] Termos MeSH secundário: Adolescente
Adulto
Feminino
Seres Humanos
Masculino
Projetos Piloto
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171229
[Lr] Data última revisão:
171229
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171208
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188457



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