- Correspondence to Dr Gianluca Terrin, Department of Gynecology-Obstetrics and Perinatal Medicine, Sapienza University of Rome, Viale del Policlinico 155, Rome 00161, Italy;
- Received August 4, 2014
- Revised July 16, 2015
- Accepted July 24, 2015
- First published August 17, 2015.
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