Lanciotti Lucia1,3, Alessio Correani1, Matteo Pasqualini1, Luca Antognoli2, Valentina Giovanna Dell’Orto3, Chiara Giorgetti3, Sara Colombo3, Maria Laura Palazzi3, Clementina Rondina3, Ilaria Burattini3 and Virgilio Paolo Carnielli1,3 Respiratory distress syndrome in preterm infants of less than 32 weeks: What difference does giving 100 or 200 mg/kg of exogenous surfactant make? 2022