[1] Philipps Univ Marburg, Dept Clin Psychol & Psychotherapy, Marburg, Germany
[2] Philipps Univ Marburg, Dept Internal Med, Div Haematol & Oncol, Fachbereich Med, Marburg, Germany
[3] Univ Hosp Bonn, Dept Internal Med Oncol Hematol & Rheumatol 3, Bonn, Germany
[4] Helmut Schmidt Univ, Dept Clin Psychol, Hamburg, Germany
[5] Univ Med Ctr Hamburg Eppendorf, Dept Syst Neurosci, Hamburg, Germany
[6] Rehabil Clin Sonnenblick, Marburg, Germany
[7] Philipps Univ Marburg, Dept Med, Res Grp Med Eth, Marburg, Germany