title: Sigmoidoscopy costs and the limits of altruism.
authors.forename: N J
authors.initials: NJ
authors.lastname: Shaheen
authors.forename: D F
authors.initials: DF
authors.lastname: Ransohoff
mesh_terms: D002204:Capitation Fee; D003363:Cost Control / Q000379:methods*; D005251:Fees, Medical; D006801:Humans; D012051:Reimbursement Mechanisms; D012812:Sigmoidoscopy / Q000191:economics*; D014481:United States