[1] Medical Clinic IV/Division of Nephrology,
[2] J. W. Goethe Universität,undefined
[3] Theodor Stern Kai 7,undefined
[4] 60590 Frankfurt am Main,undefined
[5] Germany e-mail: mondorf@em.uni-frankfurt.de Tel.: + 49-69-63 01 79 18 Fax: + 49-69-63 01 78 11,undefined
[6] Medical Clinic III/Hematology,undefined
[7] J. W. Goethe Universität,undefined
[8] Theodor Stern Kai 7,undefined
[9] 60590 Frankfurt am Main,undefined
[10] Germany,undefined
[11] Medical Clinic III/Rheumatology,undefined
[12] J. W. Goethe Universität,undefined
[13] Theodor Stern Kai 7,undefined
[14] 60590 Frankfurt am Main,undefined
[15] Germany,undefined