Mancini, Monique Catache, et al. “ Intraventricular Hemorrhage in Very Low Birth Weight Infants: Associated Risk Factors and Outcome in the Neonatal Period ”. Revista Do Hospital Das Clínicas, vol. 54, no. 5, Oct. 1999, pp. 151-4, https://doi.org/10.1590/S0041-87811999000500004.