Zhang, Xing
Hou, Xiao-He
Ma, Ya-Hui
Shen, Xue-Ning
Cao, Xi-Peng
Song, Jing-Hui
Tan, Lan
Yu, Jin-Tai
Funding for this research was provided by:
Taishan Scholar Foundation of Shandong Province (ts201511109, tsqn20161079)
Qingdao Key Health Discipline Development Fund
Article History
Received: 31 May 2019
Accepted: 11 February 2020
First Online: 22 February 2020
Ethics approval and consent to participate
: This study was approved by the ethic committee of Qingdao Municipal Hospital. Written informed consent form was obtained from all participants or their legal representatives.
: Not applicable.