Lucia Lanciotti, MD, Matteo Pasqualini, MD, Alessio Correani, MSc, PhD, Ilaria Burattini, MD, Chiara Giorgetti, MD, Maria Laura Palazzi, MD, Paola Cogo, MD, PhD, Virgilio Carnielli, MD, PhD Who Needs a Second Dose of Exogenous Surfactant? Jun 2023 The Journal of Pediatrics