[1] Clinic for Internal Medicine II,Department of Medicine
[2] University of Regensburg,undefined
[3] Medical Clinic III,undefined
[4] Dresden University of Technology,undefined
[5] Clinic for Psychosomatic Medicine,undefined
[6] Technical University of Munich,undefined
[7] Institute for Clinical Chemistry and Laboratory Medicine,undefined
[8] University of Regensburg,undefined
[9] University of Leipzig,undefined