1. Department of Biochemistry, Rush University, Chicago, Illinois;
2. Division of Gastroenterology and Hepatology, Department of Medicine, Weill Cornell Medical College, Cornell University, New York, New York;
3. Department of Biostatistics and Computational Biology, University of Rochester, Rochester, New York;
4. Microsystems Engineering, Rochester Institute of Technology, Rochester, New York;
5. Department of Medicine, Gastrointestinal Diseases Research Unit and Division of Infectious Diseases, Queen's University, Kingston, Ontario, Canada; and
6. Departments of Pediatrics and Medicine, The University of Chicago Medical Center, Chicago, Illinois