Tang, Li-Jia
Han, Jiang
Feng, Yi-Juan
Pu, Cui-Xia
Zhang, Ying
Article History
Received: 22 October 2021
Accepted: 22 March 2022
First Online: 28 March 2022
Declarations
:
: This study has been approved by Medical Ethics Committee of Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical University (KY2018042). All methods were performed in accordance with the relevant guidelines and regulations. All the pregnant women recruited in this study informed consent.
: Not applicable.
: All authors in the present study declare there is no potential interest.