Feeding problems and failure to thrive, Poor general growth,Physical disabilities such as cerebral palsy,Cognitive impairment,Learning disability or behavioral problems such as attention deficit (ADD) or autism spectrum disorders. Of infants born extremely prematurely, i.e. at less than 28 weeks gestation or with extremely low birth weight (<1000 g), 20 - 30% may show developmental disorders requiring treatment (3, 4). Impaired cognitive development and abnormal behavior may cause problems at school; in some countries the percentage of learning difficulties in the preterm population is as high as 25%.