Base de dados : MEDLINE
Pesquisa : H02.229.656 [Categoria DeCS]
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  1 / 1767 MEDLINE  
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[PMID]:28855022
[Au] Autor:Ghadim HB; Hin LS
[Ti] Título:Simulation of Rainfall-Runoff Response in Ecological Swale with On-Line Subsurface Detention Using Infoworks SD.
[So] Source:Water Environ Res;89(9):862-870, 2017 Sep 01.
[Is] ISSN:1061-4303
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The Bio-Ecological Drainage System (BIOECODS) is a sustainable drainage (SUDS) to demonstrate the 'control at source' approaches for urban stormwater management in Malaysia. It is an environmentally friendly drainage system that was designed to increase infiltration, reduce peak flow at outlet, improve water quality, through different BMPs, such as grass swale, retention pond, etc. A special feature of BIOECODS is ecological swale with on-line subsurface detention. This study attempted to create a model of ecological swale with on-line subsurface conveyance system with InfoWorks SD. The new technique has been used Storm Water Management Model (SWMM) model to describe overland flow routing and Soil Conservation Service Method (SCS) used to model infiltration or subsurface flow. The modeling technique has been proven successful, as the predicted and observed closely match each other, with a mean error of 4.58 to 7.32%. The calibrated model then used to determine the ratio of the flow exchange between the surface and subsurface drainage system. Results from the model showed that the runoff ratio exchange between the surface and subsurface is 60 to 90%.
[Mh] Termos MeSH primário: Ecossistema
Chuvas
Engenharia Sanitária
Eliminação de Resíduos Líquidos
Movimentos da Água
[Mh] Termos MeSH secundário: Simulação por Computador
Modelos Teóricos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170901
[St] Status:MEDLINE
[do] DOI:10.2175/106143017X14902968254764


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[PMID]:28689128
[Au] Autor:Veenendaal HR; Brouwer-Hanzens AJ; van der Kooij D
[Ad] Endereço:KWR Watercycle Research Institute, PO Box 1072, 3430 BB, Nieuwegein, The Netherlands.
[Ti] Título:Incubation of premise plumbing water samples on Buffered Charcoal Yeast Extract agar at elevated temperature and pH selects for Legionella pneumophila.
[So] Source:Water Res;123:439-447, 2017 Oct 15.
[Is] ISSN:1879-2448
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Worldwide, over 90% of the notified cases of Legionnaires' disease are caused by Legionella pneumophila. However, the standard culture medium for the detection of Legionella in environmental water samples, Buffered Charcoal Yeast Extract (BCYE) agar of pH 6.9 ± 0.4 with or without antimicrobial agents incubated at 36 ± 1 °C, supports the growth of a large diversity of Legionella species. BCYE agar of elevated pH or/and incubation at elevated temperature gave strongly reduced recoveries of most of 26 L. non-pneumophila spp. tested, but not of L. pneumophila. BCYE agar of pH 7.3 ± 0.1, incubated at 40 ± 0.5 °C (BCYE pH 7.3/40 °C) was tested for selective enumeration of L. pneumophila. Of the L. non-pneumophila spp. tested, only L. adelaidensis and L. londiniensis multiplied under these conditions. The colony counts on BCYE pH 7.3/40 °C of a L. pneumophila serogroup 1 strain cultured in tap water did not differ significantly from those on BCYE pH 6.9/36 °C when directly plated and after membrane filtration and showed repeatability's of 13-14%. By using membrane filtration L. pneumophila was detected in 58 (54%) of 107 Legionella-positive water samples from premise plumbing systems under one or both of these culture conditions. The L. pneumophila colony counts (log-transformed) on BCYE pH 7.3/40 °C were strongly related (r = 0.87) to those on BCYE pH 6.9/36 °C, but differed significantly (p < 0.05) by a mean of - 0.12 ± 0.30 logs. L. non-pneumophila spp. were detected only on BCYE pH 6.9/36 °C in 49 (46%) of the samples. Hence, BCYE pH 7.3/40 °C can facilitate the enumeration of L. pneumophila and their isolation from premise plumbing systems with culturable L. non-pneumophila spp., some of which, e.g. L. anisa, can be present in high numbers.
[Mh] Termos MeSH primário: Ágar
Carvão Vegetal
Legionella pneumophila/crescimento & desenvolvimento
Engenharia Sanitária
[Mh] Termos MeSH secundário: Concentração de Íons de Hidrogênio
Legionella
Temperatura Ambiente
Microbiologia da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
16291-96-6 (Charcoal); 9002-18-0 (Agar)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171013
[Lr] Data última revisão:
171013
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170710
[St] Status:MEDLINE


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[PMID]:28672210
[Au] Autor:Yang YY; Toor GS; Wilson PC; Williams CF
[Ad] Endereço:Soil and Water Quality Laboratory, Gulf Coast Research and Education Center, University of Florida, Institute of Food and Agricultural Sciences, 14625 CR 672, Wimauma, FL 33598, USA.
[Ti] Título:Micropollutants in groundwater from septic systems: Transformations, transport mechanisms, and human health risk assessment.
[So] Source:Water Res;123:258-267, 2017 Oct 15.
[Is] ISSN:1879-2448
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Septic systems may contribute micropollutants to shallow groundwater and surface water. We constructed two in situ conventional drainfields (drip dispersal and gravel trench) and an advanced drainfield of septic systems to investigate the fate and transport of micropollutants to shallow groundwater. Unsaturated soil-water and groundwater samples were collected, over 32 sampling events (January 2013 to June 2014), from the drainfields (0.31-1.07 m deep) and piezometers (3.1-3.4 m deep). In addition to soil-water and groundwater, effluent samples collected from the septic tank were also analyzed for 20 selected micropollutants, including wastewater markers, hormones, pharmaceuticals and personal care products (PPCPs), a plasticizer, and their transformation products. The removal efficiencies of micropollutants from septic tank effluent to groundwater were similar among three septic systems and were 51-89% for sucralose and 53->99% for other micropollutants. Even with high removal rates within the drainfields, six PPCPs and sucralose with concentrations ranging from <0.3 to 154 ng/L and 121 to 32,000 ng/L reached shallow groundwater, respectively. The human health risk assessment showed that the risk to human health due to consumption of groundwater is negligible for the micropollutants monitored in the study. A better understanding of ecotoxicological effects of micropollutant mixtures from septic systems to ecosystem and human health is warranted for the long-term sustainability of septic systems.
[Mh] Termos MeSH primário: Água Subterrânea
Esgotos
Águas Residuais
[Mh] Termos MeSH secundário: Medição de Risco
Engenharia Sanitária
Solo
Poluentes Químicos da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sewage); 0 (Soil); 0 (Waste Water); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170704
[St] Status:MEDLINE


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[PMID]:28498118
[Au] Autor:Fettig J; Pick V; Liebe H
[Ad] Endereço:University of Applied Sciences Ostwestfalen-Lippe, 37671 Hoexter, Germany E-mail: joachim.fettig@hs-owl.de.
[Ti] Título:Particle separation from road runoff by a decentralised lamella system - laboratory tests and experiences in the field.
[So] Source:Water Sci Technol;75(9-10):2056-2063, 2017 May.
[Is] ISSN:0273-1223
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A new decentralised settling system based on the principle of lamella separation was developed for the treatment of road runoff. Two different laboratory test methods, the DIBt (Deutsches Institut für Bautechnik) procedure and our own approach, were applied in order to evaluate the efficiency of the system based on the separation of fine mineral particles and a mixture of mineral and organic particles, respectively. Overall efficiencies (88% after DIBt and 61% according to our own method) were comparable to results obtained for commercial systems. The lamella system was then applied in the field for 1 year to treat runoff from a road area of 420 m . The amount of solids separated that was calculated from a mass balance (10.1 kg) was consistent with the amount of sediments measured (8.6 kg). However, the average separation efficiency was only 30% in the field study. This is related to the size and composition of the particles in runoff, which are not represented well by the material used for the test procedures. It is concluded that the test methods should be improved, and that more field studies are needed in order to obtain a better understanding of the settling behaviour of particles in road runoff.
[Mh] Termos MeSH primário: Monitoramento Ambiental/métodos
Tamanho da Partícula
Engenharia Sanitária/instrumentação
Movimentos da Água
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Chuvas
Transportes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170914
[Lr] Data última revisão:
170914
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170513
[St] Status:MEDLINE
[do] DOI:10.2166/wst.2017.083


  5 / 1767 MEDLINE  
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[PMID]:28498115
[Au] Autor:Gunkel M; Pawlowsky-Reusing E
[Ad] Endereço:Berliner Wasserbetriebe, Cicerostraße 24, 10709 Berlin, Germany E-mail: michel.gunkel@bwb.de.
[Ti] Título:Field campaign on sediment transport behaviour in a pressure main from pumping station to wastewater treatment plant in Berlin.
[So] Source:Water Sci Technol;75(9-10):2025-2033, 2017 May.
[Is] ISSN:0273-1223
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:As part of the project KURAS, the Berliner Wasserbetriebe realized a field campaign in 2015 in order to increase the process knowledge regarding the behaviour of transported sediment in the pressure main leading from the pumpstation to the wastewater treatment plant. The field campaign was conducted because of a lack of knowledge about the general condition of the pressure main due to its bad accessibility and the suspicion of deposits caused by hydraulic underload. The practical evidence of the sediment transport performance of this part of the sewer system, dependent on different load cases, should present a basis for further analysis, for example regarding flushing measures. A positive side-effect of the investigation was the description of the amount of pollutants caused by different weather conditions in combined sewer systems and the alterations of the sewage composition due to biogenic processes during transport. The concept included the parallel sampling of the inflow at the pumpstation and the outflow at the end of the pressure main during different weather conditions. By calculating the inflow to the pressure main, as well as its outflow at different flow conditions, it was possible to draw conclusions in regard to the transport behaviour of sediment and the bioprocesses within an 8.5 km section of the pressure main. The results show clearly that the effects of sedimentation and remobilization depend on the flow conditions. The balance of the total suspended solids (TSS) load during daily variations in dry weather shows that the remobilization effect during the run-off peak is not able to compensate for the period of sedimentation happening during the low flow at night. Based on the data for dry weather, an average of 238 kg of TSS deposits in the pressure main remains per day. The remobilization of sediment occurs only due to the abruptly increased delivery rates caused by precipitation events. These high pollution loads lead to a sudden strain at the wastewater treatment plant. It was found that the sediment transport behaviour is characterized by sedimentation up to a flow velocity of 0.35 m/s, while remobilization effects occur above 0.5 m/s. The assumption of bad sediment transport performance in the pressure main was confirmed. Therefore, the results can be used as a basis for further analysis, for example regarding periodical flushing as a means of cleaning the pressure main. The findings, especially regarding the methods and processes, are transferable and can be applied to other pressure mains in combined sewer systems. Besides the outlined evaluation of the sediment transport behaviour of the pressure main, the collected data were used in the project to calibrate a sewer system model, including a water quality model for the catchment area, and as a contribution towards an early physically based sediment transport modelling in InfoWorks CS.
[Mh] Termos MeSH primário: Engenharia Sanitária/métodos
Esgotos
Eliminação de Resíduos Líquidos/métodos
Águas Residuais/química
[Mh] Termos MeSH secundário: Berlim
Sedimentos Geológicos
Engenharia Sanitária/instrumentação
Instalações de Eliminação de Resíduos
Movimentos da Água
Tempo (Meteorologia)
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sewage); 0 (Waste Water)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170914
[Lr] Data última revisão:
170914
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170513
[St] Status:MEDLINE
[do] DOI:10.2166/wst.2017.044


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[PMID]:28412551
[Au] Autor:Shahsavari G; Arnaud-Fassetta G; Campisano A
[Ad] Endereço:PRODIG Laboratory (UMR CNRS 8586), Paris Diderot University, Rue Albert Einstein, 75013 Paris, France. Electronic address: gashin.shahsavari@gmail.com.
[Ti] Título:A field experiment to evaluate the cleaning performance of sewer flushing on non-uniform sediment deposits.
[So] Source:Water Res;118:59-69, 2017 Jul 01.
[Is] ISSN:1879-2448
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The results of a field experiment to evaluate the scouring effect of a single flush operation in a compound-section sewer channel in Paris, France, are presented in this paper. Full monitoring of the experiment allowed identifying flush-related transport/deposition key processes playing a role on the evolution of the deposited sediments. Overall, the flush was able to scour sediments accumulated over the channel invert up to a significant distance from the gate. The analysis of the results revealed that the flush had a different impact on the various sediments present in the bed mixtures, with most of the eroded volume including sediment particles smaller than the median grain size.
[Mh] Termos MeSH primário: Sedimentos Geológicos
Esgotos
Movimentos da Água
[Mh] Termos MeSH secundário: França
Paris
Engenharia Sanitária
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sewage)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170417
[St] Status:MEDLINE


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[PMID]:28390237
[Au] Autor:Wang H; Bédard E; Prévost M; Camper AK; Hill VR; Pruden A
[Ad] Endereço:State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China. Electronic address: hongwang@tongji.edu.cn.
[Ti] Título:Methodological approaches for monitoring opportunistic pathogens in premise plumbing: A review.
[So] Source:Water Res;117:68-86, 2017 Jun 15.
[Is] ISSN:1879-2448
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Opportunistic premise (i.e., building) plumbing pathogens (OPPPs, e.g., Legionella pneumophila, Mycobacterium avium complex, Pseudomonas aeruginosa, Acanthamoeba, and Naegleria fowleri) are a significant and growing source of disease. Because OPPPs establish and grow as part of the native drinking water microbiota, they do not correspond to fecal indicators, presenting a major challenge to standard drinking water monitoring practices. Further, different OPPPs present distinct requirements for sampling, preservation, and analysis, creating an impediment to their parallel detection. The aim of this critical review is to evaluate the state of the science of monitoring OPPPs and identify a path forward for their parallel detection and quantification in a manner commensurate with the need for reliable data that is informative to risk assessment and mitigation. Water and biofilm sampling procedures, as well as factors influencing sample representativeness and detection sensitivity, are critically evaluated with respect to the five representative bacterial and amoebal OPPPs noted above. Available culturing and molecular approaches are discussed in terms of their advantages, limitations, and applicability. Knowledge gaps and research needs towards standardized approaches are identified.
[Mh] Termos MeSH primário: Água Potável/microbiologia
Engenharia Sanitária
[Mh] Termos MeSH secundário: Amoeba
Seres Humanos
Legionella pneumophila
Pseudomonas aeruginosa
Microbiologia da Água
Abastecimento de Água
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Drinking Water)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171121
[Lr] Data última revisão:
171121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170409
[St] Status:MEDLINE


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[PMID]:28376582
[Au] Autor:Farquhar D
[Ad] Endereço:National Conference of State Legislatures
[Ti] Título:Getting the Lead Out.
[So] Source:State Legis;43(3):26-8, 2017 Mar.
[Is] ISSN:0147-6041
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Exposição Ambiental/prevenção & controle
Poluição Ambiental/legislação & jurisprudência
Intoxicação por Chumbo/prevenção & controle
Chumbo/efeitos adversos
Chumbo/toxicidade
[Mh] Termos MeSH secundário: Adulto
Criança
Segurança de Produtos ao Consumidor/legislação & jurisprudência
Água Potável/efeitos adversos
Exposição Ambiental/legislação & jurisprudência
Governo Federal
Seres Humanos
Chumbo/sangue
Engenharia Sanitária/legislação & jurisprudência
Governo Estadual
Estados Unidos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Drinking Water); 2P299V784P (Lead)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170419
[Lr] Data última revisão:
170419
[Sb] Subgrupo de revista:T
[Da] Data de entrada para processamento:170405
[St] Status:MEDLINE


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[PMID]:28282040
[Au] Autor:Ji P; Rhoads WJ; Edwards MA; Pruden A
[Ad] Endereço:Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, USA.
[Ti] Título:Impact of water heater temperature setting and water use frequency on the building plumbing microbiome.
[So] Source:ISME J;11(6):1318-1330, 2017 Jun.
[Is] ISSN:1751-7370
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Hot water plumbing is an important conduit of microbes into the indoor environment and can increase risk of opportunistic pathogens (for example, Legionella pneumophila). We examined the combined effects of water heater temperature (39, 42, 48, 51 and 58 °C), pipe orientation (upward/downward), and water use frequency (21, 3 and 1 flush per week) on the microbial composition at the tap using a pilot-scale pipe rig. 16S rRNA gene amplicon sequencing indicated that bulk water and corresponding biofilm typically had distinct taxonomic compositions (R =0.246, P =0.001), yet similar predicted functions based on PICRUSt analysis (R =0.087, P =0.001). Although a prior study had identified 51 °C under low water use frequency to enrich Legionella at the tap, here we reveal that 51 °C is also a threshold above which there are marked effects of the combined influences of temperature, pipe orientation, and use frequency on taxonomic and functional composition. A positive association was noted between relative abundances of Legionella and mitochondrial DNA of Vermamoeba, a genus of amoebae that can enhance virulence and facilitate replication of some pathogens. This study takes a step towards intentional control of the plumbing microbiome and highlights the importance of microbial ecology in governing pathogen proliferation.
[Mh] Termos MeSH primário: Bactérias/classificação
Água Potável
Microbiota
Engenharia Sanitária
Microbiologia da Água
Abastecimento de Água
[Mh] Termos MeSH secundário: Biofilmes
Temperatura Alta
Seres Humanos
RNA Ribossômico 16S/genética
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Drinking Water); 0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171113
[Lr] Data última revisão:
171113
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170311
[St] Status:MEDLINE
[do] DOI:10.1038/ismej.2017.14


  10 / 1767 MEDLINE  
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[PMID]:28187135
[Au] Autor:Gormley M; Aspray TJ; Kelly DA; Rodriguez-Gil C
[Ad] Endereço:School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Riccarton Campus, Edinburgh, United Kingdom.
[Ti] Título:Pathogen cross-transmission via building sanitary plumbing systems in a full scale pilot test-rig.
[So] Source:PLoS One;12(2):e0171556, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The WHO Consensus Document on the epidemiology of the SARS epidemic in 2003, included a report on a concentrated outbreak in one Hong Kong housing block which was considered a 'super-spreading event'. The WHO report conjectured that the sanitary plumbing system was one transmission route for the virus. Empty U-traps allowed the aerosolised virus to enter households from the sewerage system. No biological evidence was presented. This research reports evidence that pathogens can be aerosolised and transported on airstreams within sanitary plumbing systems and enter buildings via empty U-traps. A sanitary plumbing system was built, representing two floors of a building, with simulated toilet flushes on the lower floor and a sterile chamber with extractor fan on the floor above. Cultures of a model organism, Pseudomonas putida at 106-109 cfu ml-1 in 0·85% NaCl were flushed into the system in volumes of 6 to 20 litres to represent single or multiple toilet flushes. Air and surface samples were cultured on agar plates and assessed qualitatively and semi-quantitatively. Flushing from a toilet into a sanitary plumbing system generated enough turbulence to aerosolise pathogens. Typical sanitary plumbing system airflows (between 20-30 ls-1) were sufficient to carry aerosolised pathogens between different floors of a building. Empty U-traps allowed aerosolised pathogens to enter the chamber, encouraging cross-transmission. All parts of the system were found to be contaminated post-flush. Empty U-traps have been observed in many buildings and a risk assessment indicates the potential for high risk cross-transmission under defect conditions in buildings with high pathogen loading such as hospitals. Under defective conditions (which are not uncommon) aerosolised pathogens can be carried on the airflows within sanitary plumbing systems. Our findings show that greater consideration should be given to this mode of pathogen transmission.
[Mh] Termos MeSH primário: Infecções Bacterianas/transmissão
Engenharia Sanitária/normas
Esgotos/microbiologia
[Mh] Termos MeSH secundário: Seres Humanos
Pseudomonas/patogenicidade
Engenharia Sanitária/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sewage)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170211
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0171556



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