title: Barrier contraceptive and sexually transmitted disease study is questioned.
authors.forename: R A
authors.initials: RA
authors.lastname: Gunn
authors.forename: J R
authors.initials: JR
authors.lastname: Greenspan
authors.forename: R T
authors.initials: RT
authors.lastname: Rolfs
mesh_terms: D017280:Condoms / Q000706:statistics & numerical data*; D003274:Contraceptive Devices, Female / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D012107:Research Design; D015983:Selection Bias; D015231:Sexually Transmitted Diseases, Bacterial / Q000453:epidemiology* / Q000517:prevention & control