Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Vanderbilt University Medical Center, Nashville, TN.
Vanderbilt Institute of Infection, Immunity, and Inflammation, Vanderbilt University Medical Center, Nashville, TN.
Department of Medicine, Division of Gastroenterology, Vanderbilt University School of Medicine, Vanderbilt University Medical Center, Nashville, TN; and.