About the Authors

Ulrich Kaiser

Roles Supervision, Writing – original draft

ulrich.kaiser@ukr.de

Affiliation Clinic and Polyclinic for Internal Medicine III, Regensburg University Hospital, Regensburg, Bavaria, Germany

Ursula Vehling-Kaiser

Roles Supervision, Writing – original draft

Affiliation Oncological-Palliative Network Landshut, Landshut, Bavaria, Germany

Jörg Schmidt

Roles Data curation, Formal analysis

Affiliation Institute for Market Research in the Health Care System Munich, Munich, Bavaria, Germany

Ana Hoffmann

Roles Conceptualization, Project administration

Affiliation VK&K Studien GbR Landshut, Landshut, Bavaria, Germany

Florian Kaiser

Roles Conceptualization, Data curation, Writing – review & editing

Affiliations Oncological-Palliative Network Landshut, Landshut, Bavaria, Germany, Clinic for Hematology and Medical Oncology, University Medical Centre Göttingen, Göttingen, Lower Saxon, Germany

Competing Interests

F.K. has expert activities for Elsevier, Astellas, GSK, MSD, Novartis, Pierre-Fabre and Servier. All other authors have no conflicts of interest. This does not alter our adherence to PLOS ONE policies on sharing data and materials.