[1] Charite Univ Med Berlin, Inst Social Med Epidemiol & Hlth Econ, Berlin, Germany
[2] Humboldt Univ, Freie Univ Berlin, Berlin, Germany
[3] Berlin Inst Hlth, Berlin, Germany
[4] Univ Zurich, Legal Inst, Competence Ctr Med Eth Law Helvetiae, Zurich, Switzerland
[5] INFONETZ KREBS, Deutsch Krebshilfe, Bonn, Germany
[6] German Leukemia & Lymphoma Patients Assoc, Bonn, Germany
[7] Paracelsus Med Univ, Dept Internal Med, Div Oncol & Hematol, Klinikum Nuremberg, Nurnberg, Germany
[8] Eberhard Karls Univ Tubingen, Med Fac, Inst Hlth Sci, Dept Nursing Sci, Tubingen, Germany
[9] Univ Clin Tubingen, Inst Gen Practice & Interprofess Hlth Care, D-72076 Tubingen, Germany
[10] Eskamed AG, Basel, Switzerland
[11] TK Techniker Krankenkasse, Hamburg, Germany
[12] Ostbayer TH Regensburg, Fac Social & Hlth Sci, Regensburg, Germany
[13] Witten Herdecke Univ, Inst Integrat Med, Gemeinschaftskrankenhaus Herdecke, Herdecke, Germany
[14] Univ Duisburg Essen, Fac Med, Dept Internal & Integrat Med, Evang Klin Essen Mitte, Essen, Germany
[15] Stadt Klinikum Karlsruhe gGmbH, Gynaecol Clin, Karlsruhe, Germany
[16] Univ Clin Freiburg, Dept Self Help Res, Comprehens Canc Ctr, Freiburg, Germany
[17] Univ Zurich, Inst Complementary & Integrat Med, Zurich, Switzerland
[18] Univ Hosp Zurich, Zurich, Switzerland
[19] Univ Maryland, Sch Med, Ctr Integrat Med, Baltimore, MD 21201 USA