Heart murmurs. If you allow for mistakes costs are even higher!
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D002309:Cardiology / Q000191:economics; D002648:Child; D004452:Echocardiography / Q000191:economics*; D006337:Heart Murmurs / Q000175:diagnosis*; D006801:Humans; D012017:Referral and Consultation / Q000191:economics; D014481:United States