Affiliation: | (1) Doctoral candidate, University of Berne, Switzerland;(2) Department of Anthroposophic Medicine, Institute for Complementary Medicine KIKOM, University of Bern, Inselspital, 3010 Bern, Switzerland;(3) Institute for Evaluative Research in Orthopaedic Surgery, University of Bern, Stauffacherstrasse 78, 3014 Bern, Switzerland |