title: Lessons from geographic variations in predialysis nephrology care.
authors.forename: Wolfgang C
authors.initials: WC
authors.lastname: Winkelmayer
mesh_terms: D000368:Aged; D005843:Geography; D006297:Health Services Accessibility / Q000592:standards; D006801:Humans; D007676:Kidney Failure, Chronic / Q000401:mortality* / Q000628:therapy*; D008484:Medicaid; D006278:Medicare; D009398:Nephrology / Q000592:standards*; D051436:Renal Insufficiency, Chronic / Q000401:mortality* / Q000628:therapy*; D017582:Renal Replacement Therapy / Q000592:standards*; D016019:Survival Analysis; D014481:United States / Q000453:epidemiology