1. Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA, USA
2. Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
3. Division of Gastroenterology, Western University, London, ON, Canada
4. Division of Biomedical Informatics, University of California San Diego, La Jolla, CA, USA
5. HyperPlanar, San Diego, CA, USA