Sexually transmitted diseases in homosexual men.
D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D006716:Homosexuality; D006801:Humans; D008297:Male; D008795:Metronidazole / Q000627:therapeutic use; D010272:Parasitic Diseases / Q000188:drug therapy; D012749:Sexually Transmitted Diseases / Q000175:diagnosis / Q000188:drug therapy / Q000635:transmission*
D000900:Anti-Bacterial Agents; D008795:Metronidazole