title: Control groups in microbicide trials: in defense of orthodoxy.
authors.forename: Zena A
authors.initials: ZA
authors.lastname: Stein
authors.forename: Mervyn W
authors.initials: MW
authors.lastname: Susser
mesh_terms: D000891:Anti-Infective Agents, Local / Q000008:administration & dosage / Q000494:pharmacology*; D017280:Condoms / Q000706:statistics & numerical data; D018849:Controlled Clinical Trials as Topic / Q000379:methods* / Q000592:standards*; D005260:Female; D015658:HIV Infections / Q000517:prevention & control / Q000635:transmission; D006801:Humans; D008297:Male; D011897:Random Allocation; D016032:Randomized Controlled Trials as Topic / Q000379:methods / Q000592:standards; D012015:Reference Standards; D012107:Research Design; D018570:Risk Assessment; D012749:Sexually Transmitted Diseases / Q000517:prevention & control / Q000635:transmission
chemical_list: D000891:Anti-Infective Agents, Local