Song, Jianlu
Qiu, Wangwang
Yan, Ting
Wu, Bo
Guo, Minggao
Fan, Youben
Yang, Zhili
Article History
First Online: 23 April 2020
Compliance with ethical standards
:
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
: This retrospective study was approved by the Ethics Committee at the Shanghai Jiao Tong University Affiliated Sixth People’s Hospital. Informed consent was obtained from all individual participants included in the study.