Columbia subject headings:
Alternative medicine--Congresses.
Health products--Congresses.
Natural products--Congresses.
Traditional medicine--Congresses.
Harvard subject headings:
Alternative medicine--Congresses.
Health products--Congresses.
Natural products--Congresses.
Traditional medicine--Congresses
Princeton subject headings:
Alternative medicine--Congresses.
Health products--Congresses.
Natural products--Congresses.
Traditional medicine--Congresses.