1Virginia Commonwealth university and McGuire VA Medical Center, Richmond, VA, uSA. 2university of Alberta, Edmonton, AB, Canada. 3Dallas VA Medical Center and Baylor University Medical Center, Dallas, TX, USA. 4University of Washington, Seattle, WA, USA. 5University of Denver, Colorado, CO, USA. 6University of Toronto, Toronto, ON, Canada. 7Mayo Clinic, Rochester, MN, USA. 8Yale University Medical Center, West Haven, CT, USA. 9University of Tennessee, Memphis, TN, USA. 10University of Rochester, Rochester, NY, USA. 11University of California, San Francisco, CA, USA. 12University of Arizona, Phoenix, AZ, USA. 13University of Texas, Houston, TX, USA. 14Mercy Medical Center, Baltimore, MD, USA. 15Mayo Clinic, Scottsdale, AZ, USA. 16Emory University Medical Center, Atlanta, GA, USA. 17University of Pennsylvania, Philadelphia, PA, USA.
Correspondence: J.S.B. (email: [email protected])
SUPPLEMENTARY MATERIAL accompanies this paper at http://links.lww.com/AJG/A295
Received 29 January 2018; accepted 23 April 2018; Published online 8 June 2018
