Otitis media in infants.
D001942:Breast Feeding; D006801:Humans; D007070:Immunoglobulin A; D007223:Infant; D007231:Infant, Newborn; D008895:Milk, Human / Q000276:immunology; D010033:Otitis Media / Q000209:etiology*; D011187:Posture
D007070:Immunoglobulin A