[1] Univ Missouri Kansas City, Kansas City, MO USA
[2] Indiana Univ, Indianapolis, IN USA
[3] St Louis Univ, St Louis, MO USA
[4] Al Azhar Univ, Gaza, Palestine
[5] Allegheny Hlth Network, Pittsburgh, PA USA
[6] East Tennessee State Univ, Johnson City, TN USA
[7] SUNY Buffalo, Catholic Hlth Syst, Buffalo, NY USA
[8] Emory Univ, Atlanta, GA USA
[9] Harvard Med Sch, Ctr Adv Endoscopy, Beth Israel Deaconess Med Ctr, Boston, MA USA
[10] Washington Univ, Sch Med St Louis, St Louis, MO USA