Gan, Wei
Liu, Ying
Luo, Kai-Hong
Liang, Shan-Shan
Wang, Hui
Li, Meng
Zhang, Yan-Xing
Huang, Heng-Jian
Article History
Received: 22 November 2017
Accepted: 25 March 2018
First Online: 4 April 2018
Ethics approval and consent to participate
: The study was approved by the Institutional Ethics Committee of West China Hospital of Sichuan University and complied with Declaration of Helsinki. Written informed consent was obtained from all subjects.
: Not applicable.
: The authors declare that they have no competing interests.
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