Clinical trials referenced in this document:
Funding for this research was provided by:
CAMS Innovation Fund for Medical Sciences(NO. CAMS Innovation Fund for Medical Sciences (2020-I2M-C&T-B-042)
Received: 20 January 2021
Accepted: 19 August 2021
First Online: 28 August 2021
: The study was approved by the Institutional Research and Ethics Committee of the Peking Union Medical College Hospital. Informed consent was obtained from all patients or next of kin before data were included in the study.
: Not applicable.
: Zhanqi Zhao receives a consulting fee from Dräger Medical. Inéz Frerichs reports funding from the European Union’s Framework Programme for Research and Innovation Horizon 2020 (WELMO, Grant No. 825572) and reimbursement of speaking fees, congress and travel costs by Dräger Medical. Other authors declare no conflict of interest.