Su, Long
Huang, Guannan
Yin, Songtao
Hua, Xia
Tang, Xin
Article History
Received: 9 September 2017
Accepted: 2 February 2018
First Online: 8 February 2018
Ethics approval and consent to participate
: This study was in agreement with the Declaration of Helsinki and approved by the Ethics Committee at Tianjin Medical University. Informed consent was obtained from each patient.
: Not applicable
: The authors declare that they have no competing interests.
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