Funding for this research was provided by:
Scientific Research Fund Project of Zhejiang Health Commission (2017KY069)
Shanghai Sailing program (19YF1430100)
National Natural Science Foundation of China (81901180)
Received: 21 January 2020
Accepted: 18 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: The study was approved by ethic committee of the Second Affiliated Hospital of Zhejiang University School of Medicine, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Hangzhou First People’s Hospital and Huzhou Central Hospital. Written consent was waived by ethic committee in each center, as the study collected data from reviewing medical records of standard care.
: Not applicable.
: The authors declare that they have no competing interests.