Received: 31 March 2020
Accepted: 3 July 2020
First Online: 14 July 2020
Ethics approval and consent to participate
: Ethics Committee of the Second Hospital of Jilin University approved this study.
: Oral consent to publish was obtained from all patients in this study.
: All authors have read and approved the content, and declare no conflicts of interest. There is no ethical/legal conflicts involved in the article.