Food, water and genes.
D000818:Animals; D002802:Cholinesterases / Q000235:genetics; D004032:Diet; D004777:Environment; D005502:Food; D005517:Foodborne Diseases / Q000235:genetics; D005796:Genes; D006801:Humans; D007787:Lactose Intolerance / Q000235:genetics; D008094:Lithium / Q000032:analysis / Q000378:metabolism / Q000633:toxicity*; D008286:Malabsorption Syndromes / Q000235:genetics; D013020:South America; D014881:Water Supply / Q000032:analysis*
D008094:Lithium; D002802:Cholinesterases