Liao, Zijun http://orcid.org/0000-0002-5281-9216
Zhou, Yubo http://orcid.org/0000-0002-0696-1123
Liu, Aiju
Li, Hongtian
Peters, Rachel L.
Liu, Jianmeng http://orcid.org/0000-0002-3220-6084
Article History
Received: 18 March 2020
Revised: 17 January 2021
Accepted: 28 January 2021
First Online: 26 February 2021
Compliance with ethical standards
:
: The authors declare no competing interests.
: The Institutional Review Board of Peking University approved this study. The written informed consent was obtained from all participant mothers.