- Correspondence to Professor Jean-Yves Reginster, Department of Public Health, Epidemiology and Health Economics, Liège State University, Liège, Belgium, Quartier Hôpital – CHU B23, venue Hippocrate, 13, 4000 Liège, Belgium;
- Received November 22, 2016
- Revised March 15, 2017
- Accepted March 20, 2017
- First published May 22, 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.