- Address correspondence and reprint requests to Hitoshi Hareyama, MD, PhD, Department of Obstetrics and Gynecology, Sapporo City General Hospital, North 11, West 13, Tyuuou-ku, Sapporo 060-8604, Japan. E-mail: .
- Received July 1, 2014
- Accepted January 4, 2015
- First published May 1, 2015.
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