- Correspondence to Dr Nicky GFM Beukers, Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, Amsterdam 1081 LA, The Netherlands;
- Received October 2, 2015
- Revised March 22, 2016
- Accepted June 7, 2016
- First published August 8, 2016.
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.