1. In chronic kidney disease staging the use of the chronicity criterion affects prognosis and the rate of progression 
B.O. Eriksen, O.C. Ingebretsen 
Kidney International 
Volume 72, Issue 10, Pages (November 2007)
DOI: /sj.ki
Copyright © 2007 International Society of Nephrology Terms and Conditions

2. Figure 1
Nested cohorts with different duration criteria in CKD stage 3.
Kidney International  , DOI: ( /sj.ki )
Copyright © 2007 International Society of Nephrology Terms and Conditions