Received: 22 September 2019
Accepted: 1 September 2020
First Online: 11 September 2020
Ethics approval and consent to participate
: The study not only received informed consent from all patients, but also received the support of the ethics committee of the First Affiliated Hospital of Zhengzhou University.
: Not applicable.
: All data generated or analysed during this study are included in this published article.
: The authors declare that they have no competing interests.