Gamaleldin I, Harding D, Siassakos D, Draycott T, Odd D. Significant intraventricular hemorrhage is more likely in very preterm infants born by vaginal delivery: A multi-centre retrospective cohort study. J Matern Fetal Neonatal Med. 2017 Sept 21; Epub ahead of print. PubMed: 28934915