Huang, Xiaoyong
Shi, Haiyan
Shi, Xinghai
Jiang, Xuemei
Article History
Received: 31 December 2020
Accepted: 27 July 2021
First Online: 16 August 2021
Declarations
:
: Our study was approved by the Ethics Review Board of Xinjiang Uygur Autonomous region Maternal and Child Health Hospital.
: Not applicable.
: The authors declare that they have no competing interests, and all authors should confirm its accuracy.