Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.156.100.855 [Categoria DeCS]
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  1 / 13 MEDLINE  
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[PMID]:24552763
[Au] Autor:Fujii M; Okazaki K; Makiyama K; Hisamatsu K
[Ad] Endereço:Fujii Clinic; Department of Otorhinolaryngology, Nihon University Surugadai Hospital.
[Ti] Título:[Tree pollen dispersion in Ito City, Shizuoka Prefecture].
[So] Source:Arerugi;62(11):1522-33, 2013 Nov.
[Is] ISSN:0021-4884
[Cp] País de publicação:Japan
[La] Idioma:jpn
[Ab] Resumo:BACKGROUND: The authors investigated the atmospheric tree pollen dispersion in Ito City, Shizuoka Prefecture for 12 years for the purpose of the prophylaxis and treatment of pollinosis. METHODS: We set up a Durham sampler on the rooftop of the three-story building in Ito City, and counted atmospheric pollen grouping first, Taxodiaceae and Cupressaceae; second, Pinaceae and Podocarpaceae; third, Betulaceae and Ulmaceae; last, Fagaceae. The counts of atmospheric tree pollen on season and the weather from January to June were treated statistically and analyzed on the computer program Microsoft Excel. RESULTS: Each average and SD of total pollen count was, in order, 7079±6503 count/cm(2), 502±146 count/cm(2), 891±480 count/cm(2), 906±481 count/cm(2). The last summer weather correlates to the atmospheric pollen count of Taxodiaceae, Cupressaceae, Betulaceace and Ulmaceae. The atmospheric pollen count of Taxodiaceae and Cupressaceae in spring is influenced by the weather; their atmospheric pollen count is reduced by a heavy rain or a heavy snow out of season. The atmospheric pollen count of Pinaceae, Podocarpaceae and Fagaceae does not relate to the weather. CONCLUSION: As a result of having examined the relations between the count of the atmospheric pollen and the weather in Ito City, I recognized relations in Taxodiaceae, Cupressaceae, Pinaceae and Podocarpaceae, but there were not the relations of intentionality in Betulaceae, Ulmaceae and Fagaceae.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/análise
Pólen
Árvores
[Mh] Termos MeSH secundário: Cupressaceae
Monitoramento Ambiental/instrumentação
Japão
Pinaceae
Rinite Alérgica Sazonal/prevenção & controle
Estações do Ano
Taxodiaceae
Fatores de Tempo
[Pt] Tipo de publicação:ENGLISH ABSTRACT; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants)
[Em] Mês de entrada:1404
[Cu] Atualização por classe:140220
[Lr] Data última revisão:
140220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140221
[St] Status:MEDLINE


  2 / 13 MEDLINE  
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[PMID]:23461731
[Au] Autor:Thommen C; Jana CK; Neuburger M; Gademann K
[Ad] Endereço:Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland.
[Ti] Título:Syntheses of taiwaniaquinone F and taiwaniaquinol A via an unusual remote C-H functionalization.
[So] Source:Org Lett;15(6):1390-3, 2013 Mar 15.
[Is] ISSN:1523-7052
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A protecting-group-free route to (-)-taiwaniaquinone F based on a ring contraction and subsequent aromatic oxidation of a sugiol derivative is reported. In addition, the first synthesis of (+)-taiwaniaquinol A is reported via short time exposure of (-)-taiwaniaquinone F to sunlight triggering a remote C-H functionalization. The hypothesis that the biogenesis of some methylenedioxy bridged natural products could proceed via similar nonenzymatic mechanisms is presented.
[Mh] Termos MeSH primário: Diterpenos/síntese química
Quinonas/síntese química
[Mh] Termos MeSH secundário: Diterpenos/química
Estrutura Molecular
Oxirredução
Quinonas/química
Estereoisomerismo
Taxodiaceae/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Diterpenes); 0 (Quinones); 0 (sugiol); 0 (taiwaniaquinol A); 0 (taiwaniaquinone F)
[Em] Mês de entrada:1307
[Cu] Atualização por classe:130315
[Lr] Data última revisão:
130315
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:130307
[St] Status:MEDLINE
[do] DOI:10.1021/ol4003652


  3 / 13 MEDLINE  
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[PMID]:21410872
[Au] Autor:Groth E; Tandre K; Engström P; Vergara-Silva F
[Ad] Endereço:Evolutionary Biology Centre, Physiological Botany, Uppsala University, Norbyvägen 18D, Uppsala, Sweden. erika@erikagroth.se
[Ti] Título:AGAMOUS subfamily MADS-box genes and the evolution of seed cone morphology in Cupressaceae and Taxodiaceae.
[So] Source:Evol Dev;13(2):159-70, 2011 Mar-Apr.
[Is] ISSN:1525-142X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In this comparative developmental genetics study, we test hypotheses based on fossil and morphological data on reproductive organ morphology and evolution in conifers--specifically, the ovule-bearing organ in Cupressaceae and Taxodiaceae. Genes homologous to the Arabidopsis gene AGAMOUS are expressed in ovuliferous scales of spruces (Picea) throughout development. Previous studies have shown that the AGAMOUS subfamily of MADS-box genes predates the split between angiosperms and gymnosperms, and that these genes have in part conserved functions in reproductive development among seed plants, especially in the specification of identity of the ovule-bearing organs. These data indicate that their expression in conifer families other than Pinaceae might be used as markers for organs homologous to the Pinaceae ovuliferous scale. Here we have isolated putative AGAMOUS orthologs from Cupressaceae and Taxodiaceae and analyzed their expression pattern in seed cones to test for the presence of morphological homologs of ovuliferous scales. Our results were not congruent with the hypothesis that the tooth of the Cryptomeria seed cone is homologous to the Picea ovuliferous scale. Likewise, the hypothesis that the bracts of Thujopsis and Juniperus contain fused ovuliferous scales was not supported. However, we found expression of AGAMOUS homologs in the sterile bracts of Cupressaceae seed cones at late developmental stages. This expression probably represents a novel gene function in these conifer families, since no corresponding expression has been identified in Pinaceae. Our study suggests that the evolutionary history of modern conifer cones is more diverse than previously thought.
[Mh] Termos MeSH primário: Evolução Biológica
Cupressaceae/anatomia & histologia
Cupressaceae/genética
Proteínas de Domínio MADS/genética
Proteínas de Plantas/genética
Taxodiaceae/anatomia & histologia
Taxodiaceae/genética
[Mh] Termos MeSH secundário: Regulação da Expressão Gênica de Plantas
Filogenia
Sementes/anatomia & histologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (MADS Domain Proteins); 0 (Plant Proteins)
[Em] Mês de entrada:1105
[Cu] Atualização por classe:110317
[Lr] Data última revisão:
110317
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:110318
[St] Status:MEDLINE
[do] DOI:10.1111/j.1525-142X.2011.00466.x


  4 / 13 MEDLINE  
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[PMID]:20708071
[Au] Autor:Zhang YM; Yin RT; Jia RR; Yang EH; Xu HM; Tan NH
[Ad] Endereço:State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650204 Kunming, Yunnan, PR China.
[Ti] Título:A new abietane diterpene from Glyptostrobus pensilis.
[So] Source:Fitoterapia;81(8):1202-4, 2010 Dec.
[Is] ISSN:1873-6971
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:A new abietane diterpene, glypensin A (1) and four known compounds, 12-acetoxy-ent-labda-8(17), 13E-dien-15-oic acid (2), quercetin 3-O-α-L-arabinofuranoside (3), quercetin 3-O-ß-D-galactopyranoside (4), ß-sitosterol (5) were isolated from the branches and leaves of Glyptostrobus pensilis (Staut.) Koch. Their structures were determined by MS, 1D- and 2D-NMR means. Compound 1 showed cytotoxicity on human chronic myeloid leukemia cell line K562 (IC(50) = 21.2µM).
[Mh] Termos MeSH primário: Diterpenos Abietanos/química
Diterpenos Abietanos/farmacologia
Taxodiaceae/química
[Mh] Termos MeSH secundário: Antineoplásicos Fitogênicos/química
Antineoplásicos Fitogênicos/farmacologia
Seres Humanos
Células K562
Modelos Moleculares
Estrutura Molecular
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antineoplastic Agents, Phytogenic); 0 (Diterpenes, Abietane)
[Em] Mês de entrada:1103
[Cu] Atualização por classe:101115
[Lr] Data última revisão:
101115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:100817
[St] Status:MEDLINE
[do] DOI:10.1016/j.fitote.2010.08.001


  5 / 13 MEDLINE  
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[PMID]:20102168
[Au] Autor:Majetich G; Shimkus JM
[Ad] Endereço:Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA. majetich@chem.uga.edu
[Ti] Título:The taiwaniaquinoids: a review.
[So] Source:J Nat Prod;73(2):284-98, 2010 Feb 26.
[Is] ISSN:1520-6025
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A comprehensive overview of the taiwaniaquinoid family of natural products is presented. A summary of the isolation, biosynthesis, and biological activity of these compounds is followed by a discussion of various synthetic strategies to the skeletal framework and a detailed discussion of 12 published syntheses of members of this family. This review covers the literature from the discovery of the first taiwaniaquinoid in 1995 until June 2009.
[Mh] Termos MeSH primário: Produtos Biológicos
Diterpenos
Taxodiaceae/química
[Mh] Termos MeSH secundário: Produtos Biológicos/química
Produtos Biológicos/isolamento & purificação
Produtos Biológicos/farmacologia
Diterpenos/química
Diterpenos/isolamento & purificação
Diterpenos/farmacologia
Estrutura Molecular
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Biological Products); 0 (Diterpenes)
[Em] Mês de entrada:1003
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:100128
[St] Status:MEDLINE
[do] DOI:10.1021/np9004695


  6 / 13 MEDLINE  
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[PMID]:18664396
[Au] Autor:Chien SC; Chen CC; Chiu HL; Chang CI; Tseng MH; Kuo YH
[Ad] Endereço:Tsuzuki Institute for Traditional Medicine, College of Pharmacy, China Medical University, Taichung 404, Taiwan, ROC.
[Ti] Título:18-nor-Podocarpanes and podocarpanes from the Bark of Taiwania cryptomerioides.
[So] Source:Phytochemistry;69(12):2336-40, 2008 Sep.
[Is] ISSN:0031-9422
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Seven nor- and podocarpane-type diterpenes were isolated from the bark of Taiwania cryptomerioides Hayata, including three 18-nor-podocarpanes: 18-nor-1beta,4alpha,14-trihydroxy-13-methoxy-8,11,13-podocarpatriene (1), 18-nor-1beta,4alpha,13,14-tetrahydroxy-8,11,13-podocarpatrien-7-one (2), 18-nor-1beta,4alpha,14-trihydroxy-13-methoxy-8,11,13-podocarpatrien-7-one (3), 1beta,14,19-trihydroxy-13-methoxy-8,11,13-podocarpatrien-7-one (4), 1beta,13,14,18-tetrahydroxy-8,11,13-podocarpatrien-7-one (5), 18-acetoxy-1beta,13,14-trihydroxy-8,11,13-podocarpatrien-7-one (6), and 1beta,14,18-trihydroxy-13-methoxy-8,11,13-podocarpatrien-7-one (7). Their structures were determined by application of 1D and 2D NMR spectroscopy and other techniques. Podocarpane-type diterpenes do not occur extensively in nature, and the presumed oxidative enzyme in this plant will be of interest to identify.
[Mh] Termos MeSH primário: Diterpenos/química
Casca de Planta/química
Taxodiaceae/química
[Mh] Termos MeSH secundário: Espectroscopia de Ressonância Magnética
Extratos Vegetais/química
Árvores/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Diterpenes); 0 (Plant Extracts)
[Em] Mês de entrada:0811
[Cu] Atualização por classe:080915
[Lr] Data última revisão:
080915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:080731
[St] Status:MEDLINE
[do] DOI:10.1016/j.phytochem.2008.06.005


  7 / 13 MEDLINE  
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[PMID]:16937067
[Au] Autor:Chen SH; Chung NJ; Wang YN; Lee CL; Lee YL; Tsai PF
[Ad] Endereço:Department of Life Science, National Taiwan University, Taipei.
[Ti] Título:Study of male sterility in Taiwania cryptomerioides Hayata (Taxodiaceae).
[So] Source:Protoplasma;228(1-3):137-44, 2006 Aug.
[Is] ISSN:0033-183X
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:A study of male sterility over a period of three consecutive years on a conifer species endemic to Taiwan, Taiwania cryptomerioides Hayata (Taxodiaceae), was done for this article. With the aids of fluorescence and electron microscopic observations, the ontogenic processes in the fertile and sterile microsporangia are compared, using samples collected from Chitou Experimental Forest and Yeou-Shoei-Keng Clonal Orchard of the National Taiwan University, Nantou, Taiwan. The development of male strobili occurred from August to the end of March. Microsporogenesis starts with the formation of the archesporium and ends with the maturation of 2-celled pollen grains within the dehiscing microsporangium. Before meiosis, there was no significant difference in ultrastructure between the fertile and sterile microsporangia. Asynchronous pollen development with various tetrad forms may occur in the same microsporangium of either fertile or sterile strobili. However, a callose wall was observable in the fertile dyad and tetrad, but not in the sterile one. After dissolution of the callose wall, the fertile microspores were released into the locule, while some sterile microspores still retained as tetrads or dyads with intertwining of exine walls in the proximal faces. As a result, there was no well developed lamellated endexine and no granulate ectexine or intine in the sterile microspores. Eventually, the intracellular structures in sterile microspores were dramatically collapsed before anthesis. The present study shows that the abortion in pollen development is possibly attributed to the absence of the callose wall. The importance of this structure to the male sterility of T. cryptomerioides is discussed.
[Mh] Termos MeSH primário: Infertilidade das Plantas/fisiologia
Taxodiaceae/fisiologia
[Mh] Termos MeSH secundário: Glucanos/metabolismo
Pólen/ultraestrutura
Sementes/ultraestrutura
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Glucans); 9064-51-1 (callose)
[Em] Mês de entrada:0611
[Cu] Atualização por classe:171012
[Lr] Data última revisão:
171012
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:060829
[St] Status:MEDLINE


  8 / 13 MEDLINE  
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[PMID]:15744099
[Au] Autor:Chang CI; Tseng MH; Kuo YH
[Ad] Endereço:Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Taiwan.
[Ti] Título:Five new diterpenoids from the bark of Taiwania cryptomerioides.
[So] Source:Chem Pharm Bull (Tokyo);53(3):286-9, 2005 Mar.
[Is] ISSN:0009-2363
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Five new diterpenoids, 11-hydroxyabieta-8,11,13-trien-7-one (1), 11,12,14-trihydroxyabieta-8,11,13-trien-7-one (2), 6beta,7alpha-diacetoxyroyleanone (3), 7beta-hydroxymanoyl oxide (4), and 9alpha-hydroxyisopimara-8(14),15-dien-7-one (5) were obtained from the bark of Taiwania cryptomerioides. The structures of the new compounds 1-5 were elucidated on the basis of spectral analysis and chemical evidence.
[Mh] Termos MeSH primário: Diterpenos/química
Diterpenos/isolamento & purificação
Casca de Planta/química
Taxodiaceae/química
[Mh] Termos MeSH secundário: Extratos Vegetais/química
Taiwan
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Diterpenes); 0 (Plant Extracts)
[Em] Mês de entrada:0508
[Cu] Atualização por classe:061115
[Lr] Data última revisão:
061115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:050304
[St] Status:MEDLINE


  9 / 13 MEDLINE  
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[PMID]:15678377
[Au] Autor:Chang CI; Chang JY; Kuo CC; Pan WY; Kuo YH
[Ad] Endereço:Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung, Taiwan.
[Ti] Título:Four new 6-nor5(6-->7)abeo-abietane type diterpenes and antitumoral cytotoxic diterpene constituents from the bark of Taiwania cryptomerioides.
[So] Source:Planta Med;71(1):72-6, 2005 Jan.
[Is] ISSN:0032-0943
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Four new 6-nor-5(6-->7) abeo-abietane type diterpenes designated as taiwaniaquinone G, taiwaniaquinone H, taiwaniaquinol E and taiwaniaquinol F and eight known diterpenes, taiwaniaquinones A (5), D (6), E, F (8), and taiwaniaquinols A (9), B, C (11), D (12) were isolated from the bark of Taiwania cryptomerioides. Their structures were elucidated on the basis of spectroscopic studies. These twelve diterpenes were evaluated for in vitro antitumoral cytotoxic activity. The result demonstrated that compounds 5, 6, 8, 9, 11, and 12 bearing an aldehyde group possessed potent cytotoxic activity against KB epidermoid carcinoma cancer cell lines with IC50 values of 6.9, 7.2, 4.4, 8.3, 8.1, and 3.5 microM, respectively.
[Mh] Termos MeSH primário: Antineoplásicos Fitogênicos/farmacologia
Fitoterapia
Extratos Vegetais/farmacologia
Taxodiaceae
[Mh] Termos MeSH secundário: Antineoplásicos Fitogênicos/administração & dosagem
Antineoplásicos Fitogênicos/química
Antineoplásicos Fitogênicos/uso terapêutico
Linhagem Celular Tumoral/efeitos dos fármacos
Diterpenos Abietanos/administração & dosagem
Diterpenos Abietanos/química
Diterpenos Abietanos/farmacologia
Diterpenos Abietanos/uso terapêutico
Seres Humanos
Concentração Inibidora 50
Células KB/efeitos dos fármacos
Casca de Planta/química
Extratos Vegetais/administração & dosagem
Extratos Vegetais/química
Extratos Vegetais/uso terapêutico
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antineoplastic Agents, Phytogenic); 0 (Diterpenes, Abietane); 0 (Plant Extracts)
[Em] Mês de entrada:0503
[Cu] Atualização por classe:061115
[Lr] Data última revisão:
061115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:050129
[St] Status:MEDLINE


  10 / 13 MEDLINE  
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[PMID]:15719691
[Au] Autor:Wang F; Yu EX; Liu WW
[Ad] Endereço:Dept of Pharmacy, Renmin Hospital of Wuhan University, Wuhan 430060, China. yunianlin@sohu.com
[Ti] Título:[Protective effects of total flavones of metasequosia on cerebral ischemia-reperfusion injury in rats].
[So] Source:Zhongguo Zhong Yao Za Zhi;29(2):179-81, 2004 Feb.
[Is] ISSN:1001-5302
[Cp] País de publicação:China
[La] Idioma:chi
[Ab] Resumo:OBJECTIVE: To observe the protective effects of total flavones of metasequosia (TFM) on cerebral ischemia-reperfusion injury in rats. METHOD: The bilateral vertebral arteries of rats were occluded under anesthesia, and 4-5 h later the carotid arteries of rats in the conscious condition were occluded for 30 min followed by reperfusion for 90 min. The effects of TFM on the contents of water, Na+, Ca2+ in cortex, malondialdehyde (MDA) content and superoxide dismutase (SOD) activity in brain hemispheres, as well as the EEG activities were observed. RESULT: After 30 min ischemia and 90 min reperfusion, the contents of water, Na+ , Ca2+ and MDA were increased, and the SOD activity was reduced with abnormal EEG activity and ischemic injury in the brain tissues. TFM 25-100 mg x kg(-1) ip 30 min before the carotid arteries were occluded, decreased the elevated water, Na+, Ca2+ and MDA contents, increased the SOD activity, reduced the ischemic injury of brain tissue, and promoted the recovery of EEG activities. CONCLUSION: TFM has a protective effect on cerebral ischemia-reperfusion injury in rats.
[Mh] Termos MeSH primário: Encéfalo/metabolismo
Flavonas/farmacologia
Fármacos Neuroprotetores/farmacologia
Traumatismo por Reperfusão
Taxodiaceae
[Mh] Termos MeSH secundário: Animais
Encéfalo/fisiopatologia
Isquemia Encefálica/complicações
Eletroencefalografia/efeitos dos fármacos
Flavonas/isolamento & purificação
Masculino
Fármacos Neuroprotetores/isolamento & purificação
Plantas Medicinais/química
Ratos
Ratos Sprague-Dawley
Traumatismo por Reperfusão/etiologia
Traumatismo por Reperfusão/metabolismo
Traumatismo por Reperfusão/patologia
Taxodiaceae/química
[Pt] Tipo de publicação:ENGLISH ABSTRACT; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Flavones); 0 (Neuroprotective Agents)
[Em] Mês de entrada:0509
[Cu] Atualização por classe:080206
[Lr] Data última revisão:
080206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:050222
[St] Status:MEDLINE



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