title: Colonoscopy practice variation.
authors.forename: Douglas K
authors.initials: DK
authors.lastname: Rex
mesh_terms: D003113:Colonoscopy / Q000592:standards / Q000706:statistics & numerical data; D006801:Humans; D006993:Hypnotics and Sedatives; D010818:Practice Patterns, Physicians' / Q000592:standards / Q000706:statistics & numerical data; D013997:Time Factors; D014481:United States
chemical_list: D006993:Hypnotics and Sedatives