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