M Duerr, P Glander, F Diekmann, D Dragun, H. H Neumayer and K. Budde
Clinical Journal of the American Society of Nephrology 5 ( 4 ): 703 - 708 , 2010
L Schewior, D Dragun, B Rudolph and E. Schaeffner
NDT Plus 2 ( 3 ): 199 - 204 , 2009