1. The Dialysis Outcomes and Practice Patterns Study (DOPPS): Design, data elements, and methodology 
Ronald L. Pisoni, PhD, MS, Brenda W. Gillespie, PhD, David M. Dickinson, MS, Kenneth Chen, MS, Michael H. Kutner, PhD, Robert A. Wolfe, PhD 
American Journal of Kidney Diseases 
Volume 44, Pages 7-15 (November 2004)
DOI: /j.ajkd
Copyright © 2004 National Kidney Foundation, Inc. Terms and Conditions

2. Fig 1 DOPPS framework for hypothesis.
American Journal of Kidney Diseases  , 7-15DOI: ( /j.ajkd )
Copyright © 2004 National Kidney Foundation, Inc. Terms and Conditions

3. Fig 2 DOPPS II target samples.
American Journal of Kidney Diseases  , 7-15DOI: ( /j.ajkd )
Copyright © 2004 National Kidney Foundation, Inc. Terms and Conditions