Randomised controlled clinical trial of standard versus echocardiographically guided ibuprofen treatment for patent ductus arteriosus in preterm infants: A pilot study

1. Bravo, M.C.
2. Cabañas, F.
3. Riera, J.
4. Pérez-Fernández, E.
5. Quero, J.
6. Pérez-Rodríguez, J.
7. Pellicer, A.