Age of introduction of cow's milk to infants.
D000367:Age Factors; D000818:Animals; D002417:Cattle; D004064:Digestive System / Q000254:growth & development; D005512:Food Hypersensitivity / Q000276:immunology; D006801:Humans; D007073:Immunoglobulin E / Q000032:analysis; D007223:Infant; D007225:Infant Food / Q000032:analysis; D007227:Infant Nutritional Physiological Phenomena; D007231:Infant, Newborn; D008892:Milk / Q000009:adverse effects / Q000032:analysis; D008895:Milk, Human / Q000032:analysis
D007073:Immunoglobulin E