Columbia subject headings:
Caffeine--Physiological effect--Congresses.
Coffee.
Glyoxalase.
Tea.
Harvard subject headings:
Coffee--Health aspects--Congresses.
Coffee--Toxicology--Congresses.
Mate (Tea)--Health aspects--Congresses.
Methylxanthines--Carcinogenicity--Congresses.
Tea--Health aspects--Congresses.
Princeton subject headings: