title: Spermicidal activity of urea.
mesh_terms: D000818:Animals; D003270:Contraceptive Agents; D005260:Female; D006801:Humans; D008297:Male; D010063:Ovum / Q000187:drug effects; D011817:Rabbits; D051381:Rats; D013094:Spermatozoa / Q000187:drug effects*; D014508:Urea / Q000494:pharmacology*
chemical_list: D003270:Contraceptive Agents; D014508:Urea