1. Medical University Vienna; Section for Clinical Biometrics, Center for Medical Statistics, Informatics and Intelligent Systems; Spitalgasse 23 Vienna Austria A-1090
2. Krankenhaus Elisabethinen Linz; Department for Internal Medicine III, Nephrology & Hypertension Diseases, Transplantation Medicine & Rheumatology; Fadingerstrasse 1 Linz Austria 4040
3. Ghent University Hospital; European Renal Best Practice (ERBP), guidance issuing body of the European Renal Association - European Dialysis and Transplant Association (ERA-EDTA), Methods Support Team; Ghent Belgium
4. Hospital Ramon y Cajal; CIBER Epidemiologia y Salud Publica (CIBERESP); Ctra. Colmenar km, 9.1 Madrid Spain 28047
5. Instituto de Investigación Puerta de Hierro (IDIPHIM); Clinical Biostatistics Unit; C/ Joaquín Rodrigo, 2 Edif. Laboratorio. Planta 0. Majadahonda Madrid Spain 28222
6. Ghent University Hospital; Renal Division, Department of Internal Medicine; De Pintelaan 185 Ghent Belgium 9000
7. Hospital del Mar-IMIM; Department of Nephrology; Passeig Maritim 25-29 Barcelona Spain 08003
8. The University of Sydney; Sydney School of Public Health; Edward Ford Building A27 Sydney NSW Australia 2006
9. The University of Sydney at Westmead; Centre for Transplant and Renal Research, Westmead Millennium Institute; Westmead NSW Australia 2145
10. The Children's Hospital at Westmead; Cochrane Kidney and Transplant, Centre for Kidney Research; Westmead NSW Australia 2145