What is the Future of Vulnerable New-borns

Inclusion Criteria: * Birth before 33 weeks of amenorrhea * Birth between 33 and 36 weeks of amenorrhea and fetal growth retardation lower to the 3rd percentile for the gestational age. * Perinatal anoxic-ischemia Other children whose birth, perinatal history or the existence of a pathology classifies them in a category at risk of developmental psychomotor disorders, the co-twin of a child of the preceding groups. Exclusion Criteria: * Children born in normal conditions.