[1] Indiana Univ, Indianapolis, IN 46204 USA
[2] St Lukes Med Ctr, Milwaukee, WI USA
[3] Georgetown Univ, Washington, DC USA
[4] Nashville GI Associates, Nashville, TN USA
[5] Thomas Jefferson Univ, Philadelphia, PA 19107 USA
[6] Univ Texas San Antonio, San Antonio, TX USA
[7] Northside Gastroenterol, Indianapolis, IN USA
[8] Premier Gastroenterol Texas, Dallas, TX USA
[9] Connecticut GI PC, Hartford, CT USA
[10] Digest Hlth Associates Texas, Dallas, TX USA
[11] RedPath Integrated Pathol, Pittsburgh, PA USA