1. Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
2. Department of Biomedical Engineering, Purdue University, West Lafayette, IN 47906, USA.
3. Regenstrief Center for Healthcare Engineering, Purdue University, West Lafayette, IN 47906, USA.
4. Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
5. Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA.
6. Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
7. Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
8. Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN 37212, USA.
9. Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.