- Address correspondence and reprint requests to Dr Li Geng, PhD, Department of Gynecology and Obstetrics, Peking University Third Hospital, Huayuan-Bei Road No.49 Haidian District, Beijing 100191, China. E-mail: ; Zijian Li, Institute of Vascular Medicine, Peking University Third Hospital and Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptide, Ministry of Health, Huayuan-Bei Road No.49 Haidian District, Beijing 100191, China. E-mail: .
- Received July 29, 2013
- Accepted October 31, 2013
- First published February 1, 2014.
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