Opondo, C., Jayaweera, H., Hollowell, J., Li, Y., Kurinczuk, J., & Quigley, M. (2020). Variations in neonatal mortality, infant mortality, preterm birth and birthweight in England and Wales according to maternal country or region of birth: An analysis of linked national data from 2006 to 2012. BMJ Publishing Group.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Opondo, C., H. Jayaweera, J. Hollowell, Y. Li, J. Kurinczuk, و M. Quigley. Variations in Neonatal Mortality, Infant Mortality, Preterm Birth and Birthweight in England and Wales According to Maternal Country or Region of Birth: An Analysis of Linked National Data from 2006 to 2012. BMJ Publishing Group, 2020.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Opondo, C., et al. Variations in Neonatal Mortality, Infant Mortality, Preterm Birth and Birthweight in England and Wales According to Maternal Country or Region of Birth: An Analysis of Linked National Data from 2006 to 2012. BMJ Publishing Group, 2020.