Funding for this research was provided by:
National Center for Research Resources (UL1 TR001085)
School of Medicine, Stanford University (Department of Pediatrics)
Received: 5 December 2019
Accepted: 29 April 2020
First Online: 20 May 2020
Ethics approval and consent to participate
: The study was deemed exempt from institutional review boards at the Stanford University School of Medicine (39490) and the University of Gondar Hospital (SOM/881/05/09).
: Not applicable.
: The authors have no conflicts of interest relevant to this article to disclose.