Condoms: extra protection.
D017280:Condoms / Q000191:economics / Q000706:statistics & numerical data; D003258:Consumer Behavior; D003257:Consumer Product Safety; D004867:Equipment Design; D004868:Equipment Failure; D004869:Equipment Safety; D006801:Humans; D008153:Lubrication; D008297:Male; D012749:Sexually Transmitted Diseases / Q000517:prevention & control; D013089:Spermatocidal Agents
D013089:Spermatocidal Agents