Funding for this research was provided by:
Duke University (Emergency Medicine Global Health Grant)
Text and Data Mining valid from 2019-02-26
Received: 16 July 2018
Accepted: 12 February 2019
First Online: 26 February 2019
: This statistical simulation did not involve human subjects.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.