Perra, O., Rankin, J., Platt, M. J., Sellier, E., Arnaud, C., De La Cruz, J., . . . Bjellmo, S. (2021). Decreasing cerebral palsy prevalence in multiple births in the modern era: A population cohort study of European data. Arch Dis Child Fetal Neonatal Ed.

Perra, Oliver, Judith Rankin, Mary Jane Platt, Elodie Sellier, Catherine Arnaud, Javier De La Cruz, Ingeborg Krägeloh-Mann, David G. Sweet, e Solveig Bjellmo. "Decreasing Cerebral Palsy Prevalence in Multiple Births in the Modern Era: A Population Cohort Study of European Data." Arch Dis Child Fetal Neonatal Ed 2021.

Perra, Oliver, et al. "Decreasing Cerebral Palsy Prevalence in Multiple Births in the Modern Era: A Population Cohort Study of European Data." Arch Dis Child Fetal Neonatal Ed 2021.