The use of various kinds of milk during infancy in different socioeconomic groups.
D000818:Animals; D001942:Breast Feeding; D005506:Food Contamination; D006801:Humans; D007223:Infant; D007225:Infant Food; D007227:Infant Nutritional Physiological Phenomena; D007231:Infant, Newborn; D008892:Milk; D009513:New Hampshire; D012959:Socioeconomic Factors