- Correspondence to Maartje Nielsen, Department of Clinical Genetics, Leiden University Medical Center, Leiden, Albinusdreef 2, Leiden 2333 ZA, The Netherlands;
- Received April 20, 2012
- Revised July 14, 2012
- Accepted July 20, 2012
- First published September 11, 2012.
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.