[1] Univ Hosp Jena, Inst Psychosocial Med & Psychotherapy, Jena, Germany
[2] Univ Hosp Regensburg, Dept Internal Med 3, Regensburg, Germany
[3] Helmut Schmidt Univ, Fed Armed Forces Hamburg, Personal Psychol & Psychol Assessment, Fac Humanities & Social Sci, Hamburg, Germany
[4] Med Univ Graz, Div Hematol, Dept Internal Med 1, Graz, Austria
[5] Ludwig Maximilians Univ Munchen, Dept Internal Med 3, Psychooncol, Klinikum Grosshadern, Munich, Germany
[6] Univ Ulm, Dept Internal Med 3, Ulm, Germany
[7] Charite, Dept Hematol Oncol & Tumor Immunol, Berlin, Germany
[8] Univ Klinikum Jena, Klin Innere Med 2, Abt Hamatol & Internist Onkol, Klinikum 1, D-07740 Jena, Germany