Infant health and breast-feeding during the first 16 weeks of life.
D001942:Breast Feeding; D005767:Gastrointestinal Diseases / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology*; D009520:New Zealand; D011446:Prospective Studies; D012141:Respiratory Tract Infections / Q000453:epidemiology*; D012871:Skin Diseases / Q000453:epidemiology*