[1] Department of Internal Medicine I,
[2] Division of Hematology,undefined
[3] University of Vienna; Währinger Gürtel 18–20,undefined
[4] A-1090 Vienna,undefined
[5] Austria Tel.: 0043-1-40400-4410,undefined
[6] Fax: 0043-1-4026930),undefined
[7] Department of Medical Biology,undefined
[8] University of Vienna,undefined
[9] Austria,undefined