Funding for this research was provided by:
Shanghai Chest Hospital Talent Training Program
Received: 31 May 2020
Accepted: 22 October 2020
First Online: 29 October 2020
Ethics approval and consent to participate
: This study has been approved by the Ethics Committee and the Institutional Review Board and was conducted in accordance with the Helsinki Declaration.
: All patients agreed that their information was used for research and signed written informed consent before the collection of information.
: The authors state that they have no conflict of interests.