Wufuer, A.
Mijiti, P.
Abudusalamu, R.
Dengfeng, H.
Jian, C.
Jianhua, M.
Xiaoning, Z.
Article History
Received: 14 June 2017
Revised: 8 January 2018
Accepted: 10 February 2018
First Online: 20 March 2018
Compliance with ethical guidelines
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: A. Wufuer, P. Mijiti, R. Abudusalamu, H. Dengfeng, C. Jian, M. Jianhua, and Z. Xiaoning declare that they have no competing interests.
: This contribution depicts a retrospective study which does not interfere with therapy. The protocol was approved by the Xinjiang Medical University Ethics Committee and conducted in accordance with the Declaration of Helsinki. All patients gave written informed consent.