Received: 29 April 2020
Accepted: 13 July 2020
First Online: 17 July 2020
Ethics approval and consent to participate
: The study was approved by ethics committee and institution research board of Huoshenshan hospital and the Second Affiliated Hospital, Zhejiang University School of Medicine.
: Written informed consent was waived due to urgent need of data collection.
: The authors declared no conflicts of interest.