Columbia subject headings:
Digestive organs--Diseases--Research--United States.
Digestive organs--Diseases--Treatment--United States.
Inflammatory bowel diseases--Research--United States.
Inflammatory bowel diseases--Treatment--United States.
Harvard subject headings:
Digestive organs--Diseases--Research--United States.
Digestive organs--Diseases--Treatment--United States.
Inflammatory bowel diseases--Research--United States.
Inflammatory bowel diseases--Treatment--United States.
Princeton subject headings:
Digestive organs--Diseases--Research--United States.
Digestive organs--Diseases--Treatment--United States.
Inflammatory bowel diseases--Research--United States.
Inflammatory bowel diseases--Treatment--United States.