Acknowledgements
pain
We are grateful to Christer Carlsson, PhD, MD, consultant pain physician and anaesthesiologist, and to Allan Abbott, PhD, Professor, physiologist and RPT, for their valuable contributions by reading the manuscript and providing comments. Furthermore, we thank Lei Luo, PhD and MD for confirming the description of the intervention. We would also like to thank the statisticians Fredrik Nilsson and Susann Ullén at Clinical Studies Sweden, Forum South, for their advice on statistics. Finally, we thank Monica Millisdotter Krantz, MSc and RPT who contributed with the two questions in the general questionnaire that yielded the results presented in Figs. 