Meningococcal pneumonia.
D000293:Adolescent; D006801:Humans; D008297:Male; D008589:Meningococcal Infections / Q000188:drug therapy*; D010402:Penicillin G Procaine / Q000627:therapeutic use*; D011014:Pneumonia / Q000188:drug therapy*
D010402:Penicillin G Procaine