Published on in Vol 7, No 1 (2019): Jan-Mar
                                    Preprints (earlier versions) of this paper are
                                    available at
                                    https://preprints.jmir.org/preprint/13008, first published
                                    .
                                

1 Division of Foundational Sciences, Columbia University College of Dental Medicine, New York, NY, United States
2 Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, United States
*these authors contributed equally
