Effect of advanced maternal age on perinatal outcomes in twins: the impact of chorionicity.

MLA

Lisonkova, Sarka, et al. “Effect of Advanced Maternal Age on Perinatal Outcomes in Twins: The Impact of Chorionicity.” Annals of Epidemiology, vol. 23, no. 7, July 2013, pp. 428–34. EBSCOhost, https://doi.org/10.1016/j.annepidem.2013.05.005.

APA

Lisonkova, S., Joseph, K. S., Bell, R., & Glinianaia, S. V. (2013). Effect of advanced maternal age on perinatal outcomes in twins: the impact of chorionicity. Annals of Epidemiology, 23(7), 428–434. https://doi.org/10.1016/j.annepidem.2013.05.005

Chicago

Lisonkova, Sarka, K S Joseph, Ruth Bell, and Svetlana V Glinianaia. 2013. “Effect of Advanced Maternal Age on Perinatal Outcomes in Twins: The Impact of Chorionicity.” Annals of Epidemiology 23 (7): 428–34. doi:10.1016/j.annepidem.2013.05.005.