Emerg Themes Epidemiol. 2005 May 24;2:3.
Epidemiologists and causation in an intricate world.
Barreto ML.
Instituo de Saúde Coletiva, Universidade Federal da Bahia Salvador, Bahia, Brazil. mauricio@ufba.br
PMID: 15913457 [PubMed]
PMCID: PMC1180463
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