The enemy is "us"!
Petty
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D015746:Abdominal Pain / Q000209:etiology*; D000208:Acute Disease; D000368:Aged; D001064:Appendicitis / Q000175:diagnosis*; D003675:Defensive Medicine / Q000191:economics; D003937:Diagnosis, Differential; D004630:Emergencies; D004751:Enteritis / Q000175:diagnosis*; D006801:Humans; D008297:Male; D010818:Practice Patterns, Physicians' / Q000191:economics*; D014481:United States