Funding for this research was provided by:
clinical study initiated by researchers at Jiangsu Province Hospital of Chinese Medicine (YJZ201901)
Received: 21 February 2020
Accepted: 12 October 2020
First Online: 21 October 2020
Ethics approval and consent to participate
: This study is a retrospective analysis, the study protocol was approved by the hospital Medical Ethics Committee (Number: 2019NL-098-02).
: Not applicable.
: The authors declare that they have no competing interests. We declare that author QH is an Editorial Board Member for the journal, as an Associate Editor.