Hindman, Bridget
Ma, Qiang http://orcid.org/0000-0002-6379-9927
Funding for this research was provided by:
National Institute for Occupational Safety and Health (8939050W)
Article History
Received: 11 December 2018
Accepted: 21 January 2019
First Online: 7 March 2019
Compliance with ethical standards
:
: The authors declare there are no competing financial interests. The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention.