Funding for this research was provided by:
National Key Research and Development Program of China (2017YFD0400300)
National Natural Science Foundation of China (31871767)
Public Service Sectors (Agriculture) Special and Scientific Research Projects (201503134)
Article History
Received: 27 March 2019
Revised: 1 August 2019
Accepted: 8 August 2019
First Online: 11 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interests.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all parents of the infants included in the study.