Columbia subject headings:
Diet--Congresses.
Food--Protein content--Congresses.
Plant proteins as food--Congresses.
Proteins in human nutrition.
Harvard subject headings:
Diet--Congresses.
Food--Protein content--Congresses.
Plant proteins as food--Congresses.
Proteins in human nutrition.
Princeton subject headings:
Diet--Congresses.
Food--Protein content--Congresses.
Plant proteins as food--Congresses.
Proteins in human nutrition.