Professor of Gastroenterology, Karolinska Institutet

National and Kapodistrian University of Athens, Medical School,

Center for Interventional Endoscopy (CIE), Advent Health

Southern California Permanente Medical Group

Dijon's University

Attending Physician, St. Francis Hospital. Assistant Professor at University of Connecticut.

Mayo Clinic School of Graduate Medical Education

The Children's Hospital of Philadelphia, University of Pennsylvania

Gastroenterologist, Harvard Medical Faculty Physicians at Beth Israel Deaconess