Birth weight and psychomotor performance in rural Guatemala.
D001143:Arousal; D001724:Birth Weight; D003906:Developing Countries; D006166:Guatemala; D006185:Habituation, Psychophysiologic; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007361:Intelligence Tests; D009043:Motor Activity; D011596:Psychomotor Disorders / Q000209:etiology*