- Address correspondence and reprint requests to: Li-Chun Wei, MD, Department of Radiation Oncology, Xijing Hospital, The Fourth Military Medical University, Xi’an, No.127 Changle West Road, Shaanxi, China. E-mail: .
- Received January 20, 2016
- Accepted May 14, 2016
- First published October 1, 2016.
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