TNFRSF11B and chronic kidney disease: 41 Sigrist Sigrist MK MK Levin Levin A A Er Er L L McIntyre McIntyre CW CW Elevated Osteoprotegerin is Associated with All-cause Mortality in CKD Stage 4 and 5 Patients in Addition to Vascular Calcification Elevated Osteoprotegerin is Associated with All-cause Mortality in CKD Stage 4 and 5 Patients in Addition to Vascular Calcification Nephrol Dial Transplant Nephrol Dial Transplant 2009 2009 24 24 10 10 3157 3157 3162 3162 10.1093/ndt/gfp253 10.1093/ndt/gfp253 19491380 19491380