Allergy to cows' milk presenting as chronic constipation.
D000818:Animals; D002417:Cattle; D002675:Child, Preschool; D002908:Chronic Disease; D003248:Constipation / Q000209:etiology*; D005512:Food Hypersensitivity / Q000150:complications*; D006801:Humans; D008297:Male; D008892:Milk / Q000009:adverse effects*