Early treatment versus expectative management of patent ductus arteriosus in preterm infants: a multicentre, randomised, non-inferiority trial in Europe (BeNeDuctus trial)

PrematurityPatent ductus arteriosusNeonatal intensive care unitIbuprofenExpectative managementDuctal ligationMortalityNecrotising enterocolitisBronchopulmonary dysplasiaCost-effectiveness