title: Sexual activity as environmental cancer hazard.
mesh_terms: D002274:Carcinogens, Environmental; D005260:Female; D006801:Humans; D008297:Male; D010412:Penile Neoplasms / Q000209:etiology*; D012725:Sexual Behavior; D002583:Uterine Cervical Neoplasms / Q000209:etiology*
chemical_list: D002274:Carcinogens, Environmental