Wang, Quan
Guo, Bo-Yang
Zhao, Qing-Chuan
Yan, Zun-Dong
Shang, Li-Feng
Yu, Juan
Ji, Gang
Article History
Received: 12 July 2017
Accepted: 5 June 2019
First Online: 26 June 2019
Ethics approval and consent to participate
: Ethics approval has been sought from the Ethics Committee at the First Affiliated Hospital (Xijing Hospital) of Fourth Military Medical University (KY20141104–4). Written informed consent is obtained from the participants and their family members before screening.
: Not applicable.
: The authors declare that they have no competing interests.