Penicillin-resistant gonorrhea vs. nonspecific urethritis.
D006069:Gonorrhea; D006801:Humans; D010403:Penicillin Resistance; D010406:Penicillins; D014526:Urethritis
D010406:Penicillins
GONORRHEA/penicillin resistant; PENICILLIN/resistance to; URETHRITIS/non-specific, organisms