Columbia subject headings:
Digestive organs--Diseases--Nutritional aspects--Congresses.
Gastroenterology--Congresses.
Nutrition--Congresses.
Nutritionally induced diseases--Congresses.
Harvard subject headings:
Digestive organs--Diseases--Nutritional aspects--Congresses.
Gastroenterology--Congresses.
Nutrition--Congresses
Nutritionally induced diseases--Congresses
Princeton subject headings: