- Correspondence to Dr Cara C Heuser, Maternal Fetal Medicine, Intermountain Healthcare and University of Utah, 5121 S Cottonwood Street, Ste 100, Murray, UT 84107, USA;
- Received November 1, 2011
- Revised December 12, 2011
- Accepted December 19, 2011
- First published January 19, 2012.
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