Comparison Of INSURE Method with Conventional Mechanical Ventilation after Surfactant Administration in Preterm Infants with Respiratory Distress Syndrome: Therapeutic Challenge - Nayeri, Fatemeh Sadat; Esmaeilnia Shirvani, Tahereh; Aminnezhad, Majid; Amini, Elaheh; Dalili, Hossein; Moghimpour Bijani, Faezeh (Acta Medica Iranica)