title: Variability in CKD stage in outpatients followed in two large renal clinics: implications for CKD trials and the status of current knowledge of patterns of CKD to ESRD progression.
authors.forename: Macaulay A
authors.initials: MA
authors.lastname: Onuigbo
authors.forename: Nnonyelum T
authors.initials: NT
authors.lastname: Onuigbo
mesh_terms: D005919:Glomerular Filtration Rate; D006801:Humans; D051436:Renal Insufficiency, Chronic / Q000145:classification* / Q000503:physiopathology*