- Correspondence to Dr John Alexander Harris, Department of Obstetrics and Gynecology, University of Michigan, Bld 14 G100-19, 2800 Plymouth Rd, Ann Arbor, MI 48109, USA;
- Received October 23, 2015
- Revised February 1, 2016
- Accepted February 14, 2016
- First published March 23, 2016.
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