Published on in Vol 5, No 1 (2018): Jan-Mar
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/9441, first published
.
1 Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
2 Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
3 Research and Development Corporation, Pittsburgh, PA, United States