title: The sexually transmitted diseases--a new look.
mesh_terms: D005260:Female; D006509:Hepatitis B / Q000209:etiology; D006801:Humans; D008297:Male; D011247:Pregnancy; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases; D014526:Urethritis / Q000209:etiology / Q000382:microbiology