title: Are Medicare patients sicker, more complex, and at a higher risk for perioperative complications?
authors.forename: A E
authors.initials: AE
authors.lastname: Abouleish
authors.forename: D S
authors.initials: DS
authors.lastname: Prough
mesh_terms: D000368:Aged; D006304:Health Status; D006801:Humans; D007431:Intraoperative Complications; D006278:Medicare; D011183:Postoperative Complications; D012307:Risk Factors; D014481:United States