1. Vitamin D deficiency;Holick;N Engl J Med,2007
2. KDIGO clinical practice guideline for the diagnosis, evaluation, prevention, and treatment of chronic kidney disease-mineral and bone disorder (CKD-MBD);Kidney Int Suppl,2009
3. Nutritional vitamin D in dialysis patients: what to D-iscern?;Nigwekar;Nephrol Dial Transplant,2011
4. Prevalence of abnormal serum vitamin D, PTH, calcium, and phosphorus in patients with chronic kidney disease: results of the study to evaluate early kidney disease;Levin;Kidney Int,2007
5. Vitamin D levels and early mortality among incident hemodialysis patients;Wolf;Kidney Int,2007