- Correspondence to Dr Susanna Wiegand, Department of Pediatric Endocrinology and Diabetology, Charité Children's Hospital, Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin 13353, Germany;
- Received October 24, 2011
- Accepted July 18, 2012
- First published September 20, 2012.
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