[Commentary: Creativity in proposing a sampling plan].
Alves
Maria Cecilia Goi Porto
MC
Instituto de Saúde, Secretaria de Estado da Saúde, R. Santo Antônio 590, 01314-000 São Paulo, SP, Brazil. cecilia@isaude.sp.gov.br
D035843:Biomedical Research / Q000266:history / Q000379:methods; D049673:History, 20th Century; D006801:Humans; D018579:Patient Selection; D012107:Research Design; D018401:Sample Size; D012494:Sampling Studies