1. "Gr. T. Popa" University of Medicine and Pharmacy; Nephrology Department; Bdul Carol I, No 50 Iasi Iasi Romania 700503
2. Ghent University Hospital; European Renal Best Practice Methods Support Team; Ghent Belgium
3. University of Otago Christchurch; Department of Medicine; 2 Riccarton Ave PO Box 4345 Christchurch New Zealand 8140
4. The University of Sydney; Sydney School of Public Health; Edward Ford Building A27 Sydney NSW Australia 2006
5. The Children's Hospital at Westmead; Cochrane Renal Group, Centre for Kidney Research; Westmead NSW Australia 2145
6. Mario Negri Sud Consortium; Department of Clinical Pharmacology and Epidemiology; Santa Maria Imbaro Italy
7. Diaverum; Medical-Scientific Office; Lund Sweden