Received: 14 February 2020
Accepted: 14 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: An ethical approval was obtained from the Ethics Review Board of the Huashan Hospital, Fudan University (ethics approval registration number: KY2020-029). All patients who participated in the study gave informed consent, 49 patients signed written consent, and 36 patients gave oral consent.
: Not applicable.
: All authors declare no competing interests.