Breast-feeding and atopic disease.
D001249:Asthma / Q000517:prevention & control*; D001531:Belize; D001942:Breast Feeding; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007197:Indians, Central American; D007223:Infant; D008895:Milk, Human / Q000276:immunology*; D012424:Rural Population