title: The algebra of condoms and abstinence.
authors.affiliation: Emory University School of Medicine, Atlanta, GA 30303, USA.
authors.forename: Richard
authors.initials: R
authors.lastname: Rothenberg
authors.forename: John J
authors.initials: JJ
authors.lastname: Potterat
authors.forename: Jeffrey P
authors.initials: JP
authors.lastname: Koplan
mesh_terms: D017280:Condoms; D006801:Humans; D011336:Probability; D012746:Sexual Abstinence; D012749:Sexually Transmitted Diseases / Q000517:prevention & control*