Received: 2 April 2020
Accepted: 21 July 2020
First Online: 3 August 2020
Ethics approval and consent to participate
: The Ethics Committee of the First Affiliated Hospital of China Medical University (Liaoning, China) approved the study protocol.
: Publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out.
: The author(s) declare no competing interest.