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