Confounding and effect-measure modification in the evaluation of immunogenic agents.
Rothman
Kenneth J
KJ
Department of Epidemiology, Boston University School of Public Health, Boston, MA 02118, USA. KRothman@bu.edu
Mahon
Barbara E
BE
D003141:Communicable Diseases / Q000209:etiology* / Q000276:immunology; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D012107:Research Design; D014481:United States