Published on in Vol 7, No 2 (2019): February
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12609, first published
.
1 Carrot Inc, Redwood City, CA, United States
2 Biostatistics Core for the Center for Gastrointestinal Biology and Disease and the biostatistician for the Clinical Nutrition Research Center, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States