Liu, Kang-Sheng
Mao, Xiao-Dong
Pan, Feng
An, Rui Fang
Article History
Received: 14 September 2020
Accepted: 10 June 2021
First Online: 28 June 2021
Declarations
:
: The authors are accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved. The study was approved by the Ethics Committee of Women’s Hospital of Nanjing Medical University (No. 20180335) and conducted in accordance with the Declaration of Helsinki (as revised in 2013). All the patients provided the written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.