[1] Univ Klinikum Koln, Innere Med Klin 1, Cologne, Germany
[2] Uniklin Munster, Munster, Germany
[3] Uniklin Essen, Klin Knochenmarktransplantat, Essen, Germany
[4] Charite Campus Benjamin Franklin, Berlin, Germany
[5] Uniklin Eppendorf, Hamburg, Germany
[6] Uniklin Wurzburg, Wurzburg, Germany
[7] DRST, Ulm, Germany
[8] GHSG, Cologne, Germany
[9] Uniklin Dresden, Dresden, Germany
[10] GHSG, Wurzburg, Germany