Fluoride and tea.
D000293:Adolescent; D000328:Adult; D000818:Animals; D002648:Child; D002675:Child, Preschool; D004739:England; D005247:Feeding Behavior; D005260:Female; D005457:Fluoridation; D005459:Fluorides; D009050:Fluorosis, Dental / Q000139:chemically induced*; D006801:Humans; D008297:Male; D013662:Tea
D013662:Tea; D005459:Fluorides