Song, Shibo
Cao, Xianglong
Pan, Hongda
Hu, Maolin
Yan, Qiuxia
Song, Jinghai
Yang, Hua
Zhao, Gang
Xiao, Gang
Article History
Received: 13 March 2020
Accepted: 24 April 2020
First Online: 23 June 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: The study was approved by the Ethics Committee of Beijing Hospital with Approval Letter No. 2019BJYYEC-030-01 and was granted an exemption from requiring informed consent.
: The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.