- Correspondence to Suzanne C E H Sallevelt, Department of Clinical Genetics, Maastricht University Medical Centre, P. Debeyelaan 25, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands;
- Received August 6, 2012
- Revised November 26, 2012
- Accepted November 30, 2012
- First published January 20, 2013.
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