- Correspondence to Dr Margrit Urbanek, Division of Endocrinology, Metabolism, and Molecular Medicine, Northwestern University School of Medicine, 303 E Chicago Avenue, Tarry 15-717, Chicago, IL 60611, USA;
- Received August 15, 2011
- Revised November 3, 2011
- Accepted November 26, 2011
- First published December 17, 2011.
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