- Address correspondence and reprint requests to Yoshifumi Nakao, MD, Department of Obstetrics and Gynecology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga City, Saga 849–8501, Japan. E-mail: .
- Received April 12, 2017
- Accepted June 23, 2017
- First published November 1, 2017.
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