APA (7th ed.) Citation

Caixia Zhu, Malie Wang, Gang Niu, Juan Yang, & Zilian Wang. (2018). Obstetric outcomes of twin pregnancies at advanced maternal age: A retrospective study. Elsevier.

Chicago Style (17th ed.) Citation

Caixia Zhu, Malie Wang, Gang Niu, Juan Yang, and Zilian Wang. Obstetric Outcomes of Twin Pregnancies at Advanced Maternal Age: A Retrospective Study. Elsevier, 2018.

MLA (9th ed.) Citation

Caixia Zhu, et al. Obstetric Outcomes of Twin Pregnancies at Advanced Maternal Age: A Retrospective Study. Elsevier, 2018.