[1] Cleveland Clin, Cleveland, OH USA
[2] Univ Nevada Las Vegas, Kirk Kerkorian Sch Med, Las Vegas, NV USA
[3] Augustana Med Ctr, Augustana, GA USA
[4] Cleveland Clin Fdn, Cleveland, OH USA
[5] Massachusetts Gen Hosp, Boston, MA USA
[6] Univ North Carolina Chapel Hill, Chapel Hill, NC USA
[7] Icahn Sch Med Mt Sinai, New York, NY USA
[8] Univ Maryland, Sch Med, Baltimore, MD USA
[9] Mayo Clin Arizona, Scottsdale, AZ USA
[10] Vanderbilt Univ, Med Ctr, Nashville, TN USA
[11] Baylor Coll Med, Houston, TX USA
[12] Mayo Clin, Coll Med & Sci, Rochester, MN USA
[13] Cleveland Clin, Digest Dis & Surg Inst, Cleveland, OH USA
[14] Univ Chicago Med, Ctr Inflammatory Bowel Dis, Chicago, IL USA
[15] Gastroenterol Associates Inc, Providence, RI USA
[16] Univ Maryland, Baltimore, MD USA
[17] Univ Pittsburgh, Med Ctr, Pittsburgh, PA USA
[18] Western Univ, London, ON, Canada