About the Authors

Johannes Fleckenstein

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Writing – review & editing

johannes.fleckenstein@ikom.unibe.ch

Affiliations Department of TCM/Acupuncture, Institute of Complementary Medicine, University of Bern, Personalhaus 4 Inselspital, Bern, Switzerland, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Regensburg, Germany, Department of Sports Medicine, Institute of Sports Sciences, Goethe-University Frankfurt, Frankfurt am Main, Germany

Peter Krüger

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Regensburg, Germany

Karl-Peter Ittner

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing

Affiliation University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Regensburg, Germany

Competing Interests

Dr. Fleckenstein is the Deputy Head of the Scientific Chapter of the German Medical Acupuncture Society DAEGfA. He received honoraria for academic teaching and counselling. This does not alter our adherence to PLOS ONE policies on sharing data and materials.