Funding for this research was provided by:
National Institute of Environmental Health Sciences (R01 ES015533)
National Institute for Occupational Safety and Health (5T42OH008416)
Received: 3 January 2019
Accepted: 1 October 2019
First Online: 5 November 2019
Ethics approval and consent to participate
: All procedures were approved by Institutional Review Boards of both Harvard T.H. Chan School of Public Health and the Dhaka Community Hospital Trust. All participating families signed the informed consent of the study.
: Not applicable.
: All authors of this study disclose that they do not have any actual or potential competing interests regarding the submitted article.