For infants in need of follow up - criteria for our follow up program with neurodevelopmental examination at term, corrected: 3 month, 1 year, 2 year and 5,5 year - we do an examination according to Hammersmith neurological examination. At those intervals we then do Hammersmith, Alberta infant motor scale, Bayley and physical examination by a neonatologist and a physiotherapist and for Bayley a developmental psychologist. For infants with known cerebral injury we also do brain stem audiography and a refferal to an occupational therapist. / Stina, Karolinska University Hospital, Stockholm Sweden.