- Correspondence to Janneke van Leeuwen, Department of General Practice, Erasmus MC, University Medical Center, Wytemaweg 80, P.O. Box 2040, Rotterdam, 3000 CA, The Netherlands;
- Received March 30, 2017
- Revised July 27, 2017
- Accepted July 27, 2017
- First published August 18, 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.