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× epidemiologic methods
来源:BMC Medical Research Methodology
作者:Laura C Rodrigues, Craig D Higgins, Clarence C Tam
关键词:community surveys;respondents;...
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来源:BMC Medical Research Methodology
作者:Laura C Rodrigues, Craig D Higgins, Clarence C Tam
关键词:community surveys;respondents;...
来源:International Journal of Environmental Research and Public Health , 2013
作者:Atika Khalaf;Jan Kowalski;Vanja Berggren;等
关键词:epidemiologic methods;Middle East;...
使用许可:CC BY
来源:Revista de Nutrição , 2002
作者:Adriana Bouças Ribeiro, Marly Augusto Cardoso
关键词:questionário de freqüência alimentar;consumo de alimentos;...
使用许可:CC BY
来源:Revista Brasileira de Epidemiologia , 2008
作者:Carme Borrell, Maica Rodríguez-sanz
关键词:encuesta de salud;métodos epidemiológicos;...
使用许可:CC BY
来源:Memórias do Instituto Oswaldo Cruz , 1992
作者:Carlos Castillo-salgado
关键词:malaria;epidemiologic methods;...
使用许可:CC BY