Fig. 2From: Early treatment versus expectative management of patent ductus arteriosus in preterm infants: a multicentre, randomised, non-inferiority trial in Europe (BeNeDuctus trial)Flow chart of the study design. COXi, cyclo-oxygenase inhibitor; DA, Ductus arteriosus; DOL, day of life; GA, gestational age; (hs)PDA, (Haemocyamic significant) patent ductus arteriosus; PNA, postnatal ageBack to article page