Dose-finding for dobutamine during transitional circulation in the very preterm infant: The study protocol - Maria Sanchez-Holgado; Patricia Alvarez-Garcia; Maria Carmen Bravo; Fernando Cabañas; Manuela López Azorin; Izaskun Dorronsoro; Tania Carbayo Jimenez; Maria Maestro; Elena Diago-Sempere; Enrique Seco-Meseguer; María Jiménez-Gonzalez; Adelina Pellicer (PLoS ONE, 2025)