Condoms and HIV transmission.
Johnson
A M
AM
D017280:Condoms / Q000706:statistics & numerical data*; D005260:Female; D015658:HIV Infections / Q000517:prevention & control / Q000635:transmission*; D018023:HIV Seronegativity; D006801:Humans; D008297:Male; D015229:Sexually Transmitted Diseases, Viral / Q000517:prevention & control / Q000635:transmission*