1. Department of Internal and Integrative Medicine; Kliniken Essen-Mitte; Faculty of Medicine; University of Duisburg-Essen; Essen Germany
2. Australian Research Centre in Complementary and Integrative Medicine (ARCCIM); Faculty of Health; University of Technology Sydney; Sydney Australia
3. School of Health Sciences and Social Work; University of Portsmouth; Portsmouth United Kingdom
4. National Institute of Complementary Medicine (NICM); Western Sydney University (WSU); Sydney Australia
5. Centre for Rehabilitation Research in Oxford (RRIO), Nuffield Department of Orthopaedics, Rheumatology & Musculoskeletal Sciences (NDORMS); University of Oxford; Oxford United Kingdom