Xu, Fang
Liu, Yong
Wheaton, Anne G.
Rabarison, Kristina M.
Croft, Janet B.
Article History
First Online: 27 September 2018
Compliance with Ethical Standards
:
: The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.
: Fang Xu, Yong Liu, Anne G. Wheaton, Kristina M. Rabarison, and Janet B. Croft have no conflict of interest in the study.