Funding for this research was provided by:
Johns Hopkins Bloomberg School of Public Health
Text and Data Mining valid from 2019-08-31
Received: 15 March 2019
Accepted: 30 July 2019
First Online: 31 August 2019
Ethics approval and consent to participate
: All participants were verbally consented. This study was approved by the Johns Hopkins Institutional Review Board.
: The authors have no competing interests to disclose.