China invents male birth control pill.
D000293:Adolescent; D000328:Adult; D000818:Animals; D002681:China; D003272:Contraceptive Agents, Male / Q000009:adverse effects; D003276:Contraceptives, Oral / Q000009:adverse effects; D006072:Gossypol / Q000009:adverse effects / Q000494:pharmacology; D006801:Humans; D008297:Male; D051381:Rats; D013094:Spermatozoa / Q000187:drug effects
D003272:Contraceptive Agents, Male; D003276:Contraceptives, Oral; D006072:Gossypol