Intestinal lactase deficiency and milk drinking habits.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D004327:Drinking Behavior; D005260:Female; D006801:Humans; D007787:Lactose Intolerance / Q000453:epidemiology*; D008297:Male; D008800:Mexico; D008875:Middle Aged; D008892:Milk