Letter: Spectinomycin as second choice.
D006069:Gonorrhea / Q000188:drug therapy; D006801:Humans; D010406:Penicillins / Q000627:therapeutic use; D000198:Spectinomycin / Q000627:therapeutic use*; D013587:Syphilis / Q000188:drug therapy
D010406:Penicillins; D000198:Spectinomycin