Wu, Shan-Shan https://orcid.org/0000-0003-3876-8210
Shan, Quan-Yuan https://orcid.org/0000-0003-0113-8020
Xie, Wen-Xuan
Chen, Bin
Huang, Yang
Guo, Yu
Xie, Xiao-Yan
Lu, Ming-De
Peng, Bao-Gang
Kuang, Ming
Shen, Shun-Li https://orcid.org/0000-0001-7931-9193
Wang, Wei https://orcid.org/0000-0002-9485-583X
Article History
Received: 15 February 2019
Accepted: 21 May 2019
First Online: 6 June 2019
Compliance with ethical standards
:
: We have no conflicts of interest to declare.
: This study was complied with the ethical standards of the responsible committee on human experimentation, the standards of the Helsinki Declaration and current ethical guidelines. Informed consent was exempt because it was accomplished retrospectively and anonymously.