[1] Univ Hosp Bonn, Ctr Hlth Commun & Hlth Serv Res CHSR, Dept Psychosomat Med & Psychotherapy, Bonn, Germany
[2] Ctr Integrated Oncol Aachen, Dusseldorf, Cio Abcd, Germany
[3] Univ Hosp Bonn, Dept Psychosomat Med & Psychotherapy, Bonn, Germany
[4] Univ Cologne, Fac Med, Dept Psychosomat & Psychotherapy, Cologne, Germany
[5] Univ Hosp Cologne, Cologne, Germany
[6] Univ Hosp RWTH Aachen, Med Fac, Dept Oncol Hemostaseol & Stem Cell Transplantat, Aachen, Germany
[7] LWL Hosp Munster, Dept Psychosomat & Psychotherapy, Munster, Germany
[8] Univ Hosp Munster, Munster, Germany
[9] Univ Duisburg Essen, LVR Univ Hosp Essen, Dept Psychosomat Med & Psychotherapy, Essen, Germany
[10] Univ Hosp Essen, West German Canc Ctr WTZ, Essen, Germany
[11] Univ Dusseldorf, Med Fac, Clin Inst Psychosomat Med & Psychotherapy, Dusseldorf, Germany