- Correspondence to Dr Takayuki Kawasaki, Department of Orthopaedic Surgery, Juntendo University Faculty of Medicine, Bunkyo, Tokyo 113-8421, Japan;
- Accepted 30 October 2017
- Published in print 9 January 2018.
- Published first 21 November 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.