Sigmoidoscopy costs and the limits of altruism.
Volpintesta
E J
EJ
D003113:Colonoscopy / Q000191:economics / Q000592:standards*; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D003362:Cost-Benefit Analysis; D006801:Humans; D008329:Managed Care Programs / Q000458:organization & administration*; D008403:Mass Screening / Q000191:economics / Q000592:standards*; D011320:Primary Health Care / Q000379:methods; D012812:Sigmoidoscopy / Q000191:economics / Q000592:standards*