Lactose intolerance: an international problem.
D000328:Adult; D000818:Animals; D044383:Black People; D002648:Child; D005260:Female; D005518:Food Preferences; D006801:Humans; D007231:Infant, Newborn; D007785:Lactose / Q000378:metabolism; D007787:Lactose Intolerance / Q000453:epidemiology* / Q000235:genetics; D008297:Male; D008892:Milk; D009549:Nigeria
D007785:Lactose