Wu, Min
Zhang, Yi http://orcid.org/0000-0002-9551-8296
Funding for this research was provided by:
Health Commission of Hunan Province (No. B2017125)
Article History
Received: 14 June 2020
Accepted: 16 November 2020
First Online: 5 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study has been conducted strictly following the ethical standards of Ethics Committee of Hunan Provincial Maternal and Child Health Care Hospital (Changsha, Hunan, China). Written informed consent was obtained from each patient and healthy participant before the collection of any specimen.
: The informed consent obtained from study participants.