title: Primary adult lactose intolerance and the milking habit: a problem in biological and cultural interrelations. I. Review of the medical research.
mesh_terms: D000328:Adult; D000818:Animals; D003469:Culture; D003612:Dairying; D004032:Diet; D005006:Ethnicity; D006801:Humans; D007787:Lactose Intolerance / Q000201:enzymology / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D008892:Milk; D044469:Racial Groups