Base de dados : MEDLINE
Pesquisa : B01.050.150.900.649.313.875.865.130 [Categoria DeCS]
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  1 / 47 MEDLINE  
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[PMID]:28854252
[Au] Autor:Solazzo C; Fitzhugh W; Kaplan S; Potter C; Dyer JM
[Ad] Endereço:Museum Conservation Institute, Museum Support Center, Smithsonian Institution, Suitland, Maryland, United States of America.
[Ti] Título:Molecular markers in keratins from Mysticeti whales for species identification of baleen in museum and archaeological collections.
[So] Source:PLoS One;12(8):e0183053, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Baleen has been harvested by indigenous people for thousands of years, as well as collected by whalers as an additional product of commercial whaling in modern times. Baleen refers to the food-filtering system of Mysticeti whales; a full baleen rack consists of dozens of plates of a tough and flexible keratinous material that terminate in bristles. Due to its properties, baleen was a valuable raw material used in a wide range of artefacts, from implements to clothing. Baleen is not widely used today, however, analyses of this biomolecular tissue have the potential to contribute to conservation efforts, studies of genetic diversity and a better understanding of the exploitation and use of Mysticeti whales in past and recent times. Fortunately, baleen is present in abundance in museum natural history collections. However, it is often difficult or impossible to make a species identification of manufactured or old baleen. Here, we propose a new tool for biomolecular identification of baleen based on its main structural component alpha-keratin (the same protein that makes up hair and fingernails). With the exception of minke whales, alpha-keratin sequences are not yet known for baleen whales. We therefore used peptide mass fingerprinting to determine peptidic profiles in well documented baleen and evaluated the possibility of using this technique to differentiate species in baleen samples that are not adequately identified or are unidentified. We examined baleen from ten different species of whales and determined molecular markers for each species, including species-specific markers. In the case of the Bryde's whales, differences between specimens suggest distinct species or sub-species, consistent with the complex phylogeny of the species. Finally, the methodology was applied to 29 fragments of baleen excavated from archaeological sites in Labrador, Canada (representing 1500 years of whale use by prehistoric people), demonstrating a dominance of bowhead whale (Balaena mysticetus) in the archaeological assemblage and the successful application of the peptide mass fingerprinting technique to identify the species of whale in unidentified and partially degraded samples.
[Mh] Termos MeSH primário: Estruturas Animais/química
Baleia Franca/classificação
Queratinas/isolamento & purificação
Mapeamento de Peptídeos/métodos
Filogenia
[Mh] Termos MeSH secundário: Estruturas Animais/anatomia & histologia
Animais
Arqueologia/instrumentação
Arqueologia/métodos
Biomarcadores
Baleia Franca/anatomia & histologia
Canadá
Queratinas/classificação
Espectrometria de Massas
Museus
Nova Zelândia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers); 68238-35-7 (Keratins)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170831
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0183053


  2 / 47 MEDLINE  
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[PMID]:28070906
[Au] Autor:Thewissen JG; Hieronymus TL; George JC; Suydam R; Stimmelmayr R; McBurney D
[Ad] Endereço:Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, USA.
[Ti] Título:Evolutionary aspects of the development of teeth and baleen in the bowhead whale.
[So] Source:J Anat;230(4):549-566, 2017 Apr.
[Is] ISSN:1469-7580
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In utero, baleen whales initiate the development of several dozens of teeth in upper and lower jaws. These tooth germs reach the bell stage and are sometimes mineralized, but toward the end of prenatal life they are resorbed and no trace remains after birth. Around the time that the germs disappear, the keratinous baleen plates start to form in the upper jaw, and these form the food-collecting mechanism. Baleen whale ancestors had two generations of teeth and never developed baleen, and the prenatal teeth of modern fetuses are usually interpreted as an evolutionary leftover. We investigated the development of teeth and baleen in bowhead whale fetuses using histological and immunohistochemical evidence. We found that upper and lower dentition initially follow similar developmental pathways. As development proceeds, upper and lower tooth germs diverge developmentally. Lower tooth germs differ along the length of the jaw, reminiscent of a heterodont dentition of cetacean ancestors, and lingual processes of the dental lamina represent initiation of tooth bud formation of replacement teeth. Upper tooth germs remain homodont and there is no evidence of a secondary dentition. After these germs disappear, the oral epithelium thickens to form the baleen plates, and the protein FGF-4 displays a signaling pattern reminiscent of baleen plates. In laboratory mammals, FGF-4 is not involved in the formation of hair or palatal rugae, but it is involved in tooth development. This leads us to propose that the signaling cascade that forms teeth in most mammals has been exapted to be involved in baleen plate ontogeny in mysticetes.
[Mh] Termos MeSH primário: Evolução Biológica
Baleia Franca/embriologia
Boca/embriologia
Dente/embriologia
[Mh] Termos MeSH secundário: Animais
Baleia Franca/anatomia & histologia
Dentição Mista
Feminino
Arcada Osseodentária/anatomia & histologia
Arcada Osseodentária/embriologia
Boca/anatomia & histologia
Gravidez
Dente/anatomia & histologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170904
[Lr] Data última revisão:
170904
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170111
[St] Status:MEDLINE
[do] DOI:10.1111/joa.12579


  3 / 47 MEDLINE  
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[PMID]:28058605
[Au] Autor:Chernova OF; Shpak OV; Kiladze AB; Azarova VS; Rozhnov VV
[Ad] Endereço:Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia. chernova@sevin.ru.
[Ti] Título:Summer molting of bowhead whales Balaena mysticetus Linnaeus, 1758, of the Okhotsk Sea population.
[So] Source:Dokl Biol Sci;471(1):261-265, 2016 Nov.
[Is] ISSN:1608-3105
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In bowhead whales summering in Ulbanskiy Bay of the Okhotsk Sea, molting of epidermis has been found and histologically confirmed. The outer layer of the molting whale epidermis is longitudinally stratified and rejected in the form of relatively large plates up to several millimeters thick, each representing a lamellar formation consisting of longitudinal rows of parakeratocytes with degenerated nuclei, numerous pigment granules, and lipid inclusions. Molting intensity is correlated with the level of proliferation and regeneration of all epidermal layers, which helps to maintain the optimal skin thickness.
[Mh] Termos MeSH primário: Baleia Franca/anatomia & histologia
Baleia Franca/fisiologia
Epiderme/citologia
Epiderme/fisiologia
Muda/fisiologia
Estações do Ano
[Mh] Termos MeSH secundário: Animais
Regiões Árticas
Clima
Oceano Pacífico
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1702
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170107
[St] Status:MEDLINE
[do] DOI:10.1134/S0012496616060028


  4 / 47 MEDLINE  
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[PMID]:27333180
[Au] Autor:George JC; Stimmelmayr R; Suydam R; Usip S; Givens G; Sformo T; Thewissen JG
[Ad] Endereço:Department of Wildlife Management, North Slope Borough, Barrow, Alaska, United States of America.
[Ti] Título:Severe Bone Loss as Part of the Life History Strategy of Bowhead Whales.
[So] Source:PLoS One;11(6):e0156753, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The evolution of baleen constituted a major evolutionary change that made it possible for baleen whales to reach enormous body sizes while filter feeding on tiny organisms and migrating over tremendous distances. Bowhead whales (Balaena mysticetus) live in the Arctic where the annual cycle of increasing and decreasing ice cover affects their habitat, prey, and migration. During the nursing period, bowheads grow rapidly; but between weaning and approximately year 5, bowhead whales display sustained baleen and head growth while limiting growth in the rest of their bodies. During this period, they withdraw resources from the skeleton, in particular the ribs, which may lose 40% of bone mass. Such dramatic changes in bones of immature mammals are rare, although fossil cetaceans between 40 and 50 million years ago show an array of rib specializations that include bone loss and are usually interpreted as related to buoyancy control.
[Mh] Termos MeSH primário: Reabsorção Óssea/patologia
Baleia Franca/crescimento & desenvolvimento
Traços de História de Vida
[Mh] Termos MeSH secundário: Animais
Osso e Ossos/diagnóstico por imagem
Osso e Ossos/patologia
Processamento de Imagem Assistida por Computador
Tomografia Computadorizada por Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170719
[Lr] Data última revisão:
170719
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160623
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0156753


  5 / 47 MEDLINE  
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[PMID]:26918630
[Au] Autor:Werth AJ; Potvin J
[Ad] Endereço:Department of Biology, Hampden-Sydney College, Hampden-Sydney, Virginia, 23943, United States of America.
[Ti] Título:Baleen Hydrodynamics and Morphology of Cross-Flow Filtration in Balaenid Whale Suspension Feeding.
[So] Source:PLoS One;11(2):e0150106, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The traditional view of mysticete feeding involves static baleen directly sieving particles from seawater using a simple, dead-end flow-through filtration mechanism. Flow tank experiments on bowhead (Balaena mysticetus) baleen indicate the long-standing model of dead-end filtration, at least in balaenid (bowhead and right) whales, is not merely simplistic but wrong. To recreate continuous intraoral flow, sections of baleen were tested in a flume through which water and buoyant particles circulated with variable flow velocity. Kinematic sequences were analyzed to investigate movement and capture of particles by baleen plates and fringes. Results indicate that very few particles flow directly through the baleen rack; instead much water flows anteroposteriorly along the interior (lingual) side of the rack, allowing items to be carried posteriorly and accumulate at the posterior of the mouth where they might readily be swallowed. Since water flows mainly parallel to rather than directly through the filter, the cross-flow mechanism significantly reduces entrapment and tangling of minute items in baleen fringes, obviating the need to clean the filter. The absence of copepods or other prey found trapped in the baleen of necropsied right and bowhead whales supports this hypothesis. Reduced through-baleen flow was observed with and without boundaries modeling the tongue and lips, indicating that baleen itself is the main if not sole agent of crossflow. Preliminary investigation of baleen from balaenopterid whales that use intermittent filter feeding suggests that although the biomechanics and hydrodynamics of oral flow differ, cross-flow filtration may occur to some degree in all mysticetes.
[Mh] Termos MeSH primário: Baleia Franca/fisiologia
Comportamento Alimentar
[Mh] Termos MeSH secundário: Estruturas Animais/anatomia & histologia
Estruturas Animais/fisiologia
Animais
Fenômenos Biomecânicos
Baleia Franca/anatomia & histologia
Hidrodinâmica
Modelos Biológicos
Boca/anatomia & histologia
Boca/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1607
[Cu] Atualização por classe:170313
[Lr] Data última revisão:
170313
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160227
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0150106


  6 / 47 MEDLINE  
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[PMID]:26917353
[Au] Autor:Tarpley RJ; Hillmann DJ; George JC; Zeh JE; Suydam RS
[Ad] Endereço:Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas.
[Ti] Título:Morphometric Correlates of the Ovary and Ovulatory Corpora in the Bowhead Whale, Balaena mysticetus.
[So] Source:Anat Rec (Hoboken);299(6):769-97, 2016 Jun.
[Is] ISSN:1932-8494
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Gross morphology and morphometry of the bowhead whale ovary, including ovulatory corpora, were investigated in 50 whales from the Chukchi and Beaufort seas off the coast of Alaska. Using the presence of ovarian corpora to define sexual maturity, 23 sexually immature whales (7.6-14.2 m total body length) and 27 sexually mature whales (14.2-17.7 m total body length) were identified. Ovary pair weights ranged from 0.38 to 2.45 kg and 2.92 to 12.02 kg for sexually immature and sexually mature whales, respectively. In sexually mature whales, corpora lutea (CLs) and/or large corpora albicantia (CAs) projected beyond ovary surfaces. CAs became increasingly less interruptive of the surface contour as they regressed, while remaining identifiable within transverse sections of the ovarian cortex. CLs formed large globular bodies, often with a central lumen, featuring golden parenchymas enfolded within radiating fibrous cords. CAs, sometimes vesicular, featured a dense fibrous core with outward fibrous projections through the former luteal tissue. CLs (never more than one per ovary pair) ranged from 6.7 to 15.0 cm in diameter in 13 whales. Fetuses were confirmed in nine of the 13 whales, with the associated CLs ranging from 8.3 to 15.0 cm in diameter. CLs from four whales where a fetus was not detected ranged from 6.7 to 10.6 cm in diameter. CA totals ranged from 0 to 22 for any single ovary, and from 1 to 41 for an ovary pair. CAs measured from 0.3 to 6.3 cm in diameter, and smaller corpora were more numerous, suggesting an accumulating record of ovulation. Neither the left nor the right ovary dominated in the production of corpora. Anat Rec, 299:769-797, 2016. © 2016 Wiley Periodicals, Inc.
[Mh] Termos MeSH primário: Baleia Franca/anatomia & histologia
Corpo Lúteo/anatomia & histologia
Ovário/anatomia & histologia
[Mh] Termos MeSH secundário: Animais
Feminino
Maturidade Sexual/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170724
[Lr] Data última revisão:
170724
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160227
[St] Status:MEDLINE
[do] DOI:10.1002/ar.23337


  7 / 47 MEDLINE  
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[PMID]:26611045
[Au] Autor:Pyc CD; Geoffroy M; Knudsen FR
[Ad] Endereço:BP Exploration Operating Company Ltd., Calgary, AB, Canada, T2P 2H8. cynthia.pyc@bp.com.
[Ti] Título:A Summary Comparison of Active Acoustic Detections and Visual Observations of Marine Mammals in the Canadian Beaufort Sea.
[So] Source:Adv Exp Med Biol;875:879-84, 2016.
[Is] ISSN:0065-2598
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Fisheries sonar was used to determine the applicability of active acoustic monitoring (AAM) for marine mammal detection in the Canadian Beaufort Sea. During 170 h of simultaneous observation by marine mammal observers and active acoustic observation, 119 Balaena mysticetus (bowheads) and 4 Delphinapterus leucas (belugas) were visually sighted, while 59 acoustic signals of bowheads were detected by AAM operators. Observations and detection of seals were also recorded. Comparative results indicate that commercially available active acoustic systems can detect seals at distances up to 500 m and large baleen whales at distances up to 2 km.
[Mh] Termos MeSH primário: Acústica
Organismos Aquáticos/fisiologia
Beluga/fisiologia
Baleia Franca/fisiologia
Oceanos e Mares
[Mh] Termos MeSH secundário: Animais
Canadá
Geografia
Navios
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1606
[Cu] Atualização por classe:161109
[Lr] Data última revisão:
161109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151128
[St] Status:MEDLINE
[do] DOI:10.1007/978-1-4939-2981-8_108


  8 / 47 MEDLINE  
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[PMID]:26610973
[Au] Autor:Fleishman E; Streever B; Angliss R; Clark CW; Ellison WT; Frankel A; Gedamke J; Leu M; McKenna M; Racca R; Simmons S; Suydam R
[Ad] Endereço:John Muir Institute of the Environment, The Barn, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA. efleishman@ucdavis.edu.
[Ti] Título:Current Status of Development of Methods to Assess Effects of Cumulative or Aggregated Underwater Sounds on Marine Mammals.
[So] Source:Adv Exp Med Biol;875:303-11, 2016.
[Is] ISSN:0065-2598
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:There are no standards for assessment of the cumulative effects of underwater sound. Quantitative assessments typically consider a single source, whereas qualitative assessments may include multiple sources but rarely identify response variables. As a step toward understanding the cumulative effects of underwater sound, we assessed the aggregated sounds of multiple sources received by migrating bowhead whales (Balaena mysticetus). The quantitative method models the sound field from multiple sources and simulates movement of a population through it. The qualitative method uses experts to assess the responses of individuals and populations to sound sources and identify the potential mechanisms. These methods increase the transparency of assessments.
[Mh] Termos MeSH primário: Organismos Aquáticos/fisiologia
Baleia Franca/fisiologia
Monitoramento Ambiental/métodos
Som
Água
[Mh] Termos MeSH secundário: Animais
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
059QF0KO0R (Water)
[Em] Mês de entrada:1606
[Cu] Atualização por classe:161109
[Lr] Data última revisão:
161109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151128
[St] Status:MEDLINE
[do] DOI:10.1007/978-1-4939-2981-8_36


  9 / 47 MEDLINE  
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[PMID]:26039218
[Au] Autor:Blackwell SB; Nations CS; McDonald TL; Thode AM; Mathias D; Kim KH; Greene CR; Macrander AM
[Ad] Endereço:Greeneridge Sciences, Inc., Santa Barbara, California, United States of America.
[Ti] Título:Effects of airgun sounds on bowhead whale calling rates: evidence for two behavioral thresholds.
[So] Source:PLoS One;10(6):e0125720, 2015.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In proximity to seismic operations, bowhead whales (Balaena mysticetus) decrease their calling rates. Here, we investigate the transition from normal calling behavior to decreased calling and identify two threshold levels of received sound from airgun pulses at which calling behavior changes. Data were collected in August-October 2007-2010, during the westward autumn migration in the Alaskan Beaufort Sea. Up to 40 directional acoustic recorders (DASARs) were deployed at five sites offshore of the Alaskan North Slope. Using triangulation, whale calls localized within 2 km of each DASAR were identified and tallied every 10 minutes each season, so that the detected call rate could be interpreted as the actual call production rate. Moreover, airgun pulses were identified on each DASAR, analyzed, and a cumulative sound exposure level was computed for each 10-min period each season (CSEL10-min). A Poisson regression model was used to examine the relationship between the received CSEL10-min from airguns and the number of detected bowhead calls. Calling rates increased as soon as airgun pulses were detectable, compared to calling rates in the absence of airgun pulses. After the initial increase, calling rates leveled off at a received CSEL10-min of ~94 dB re 1 µPa2-s (the lower threshold). In contrast, once CSEL10-min exceeded ~127 dB re 1 µPa2-s (the upper threshold), whale calling rates began decreasing, and when CSEL10-min values were above ~160 dB re 1 µPa2-s, the whales were virtually silent.
[Mh] Termos MeSH primário: Baleia Franca/fisiologia
Vocalização Animal/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1602
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150604
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0125720


  10 / 47 MEDLINE  
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[PMID]:25869730
[Au] Autor:Drake SE; Crish SD; George JC; Stimmelmayr R; Thewissen JG
[Ad] Endereço:Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio.
[Ti] Título:Sensory Hairs in the Bowhead Whale, Balaena mysticetus (Cetacea, Mammalia).
[So] Source:Anat Rec (Hoboken);298(7):1327-35, 2015 Jul.
[Is] ISSN:1932-8494
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:We studied the histology and morphometrics of the hairs of bowhead whales (Balaena mysticetus). These whales are hairless except for two patches of more than 300 hairs on the rostral tip of the lower lip and chin, the rostral tip of the upper lip, and a bilateral row of approximately ten hairs caudal to the blowhole. Histological data indicate that hairs in all three of these areas are vibrissae: they show an outermost connective tissue capsule, a circumferential blood sinus system surrounding the hair shaft, and dense innervation to the follicle. Morphometric data were collected on hair diameters, epidermal recess diameters, hair follicle length, and external hair lengths. The main difference between the hairs in the different regions is that blowhole hairs have larger diameters than the hairs in the chin and rostrum regions. We speculate that the hair shaft thickness patterns in bowheads reflect functional specializations.
[Mh] Termos MeSH primário: Baleia Franca/anatomia & histologia
Cabelo/anatomia & histologia
[Mh] Termos MeSH secundário: Animais
Epiderme
Lábio/anatomia & histologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1603
[Cu] Atualização por classe:150622
[Lr] Data última revisão:
150622
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150415
[St] Status:MEDLINE
[do] DOI:10.1002/ar.23163



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