Li, Luo
Wang, Keshan
Liu, Zhenguo
Lü, Yajuan
Wang, Congcong
Yi, Xuefei
Guo, Jianping
Funding for this research was provided by:
Shandong Province Medicine and Health Science and Technology Development Plan (No.202003030471 and No.202009031334)
Key R&D Program of Zibo City (No.2018kj010100)
Development Foundation of Zibo Maternal and Child Health Hospital
Article History
Received: 25 October 2021
Accepted: 22 April 2022
First Online: 20 May 2022
Declarations
:
: This study was approved by the Ethics Committee of Zibo Central Hospital. Signed written informed consents were obtained from the patients and/or guardians.
: Not applicable.
: The authors declare that they have no competing interests.