- Correspondence to Dr Outi Mäkitie, Folkhälsan Institute of Genetics, PO Box 63, FIN-00014 University of Helsinki, Helsinki, 00014, Finland;
- Received August 26, 2016
- Revised November 12, 2016
- Accepted November 20, 2016
- First published December 16, 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.