Lactose intolerance: a newly recognized cause of gastrointestinal symptoms seen in the practice of occupational medicine.
D000328:Adult; D005260:Female; D005767:Gastrointestinal Diseases / Q000209:etiology*; D006801:Humans; D007787:Lactose Intolerance / Q000175:diagnosis / Q000201:enzymology*; D008297:Male; D008875:Middle Aged; D009787:Occupational Medicine