Funding for this research was provided by:
National Institute of Environmental Health Sciences (R01ES023563)
National Institute for Occupational Safety and Health (T42OH008421)
Received: 2 December 2019
Accepted: 12 March 2020
First Online: 5 April 2020
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of UTHealth.
: Not applicable.
: The authors declare that they have no competing interests.