HYPOTHESIS: Early inhalation of Budesonide (BS) reduces the absolute risk of developing bronchopulmonary dysplasia (BPD) or death in preterm infants born between 23 and 27 weeks gestational age (GA) by 10%. PRIMARY OBJECTIVE: Survival without BPD at 36 weeks GA. SECONDARY OBJECTIVES: (1) neurodevelopment at a corrected age of 18-22 months; (2) adverse treatment effects; (3) mortality at 36 weeks G ...