APA (7th ed.) Citation

Yuan Li, Keli Luo, Yi Tang, Ge Lin, Guangxiu Lu, & Fei Gong. (2017). Progesterone/estradiol ratio <0.25 on the day of human chorionic gonadotropin administration is associated with adverse pregnancy outcomes in prolonged protocols for in vitro fertilization/intracytoplasmic sperm injection. Elsevier.

Chicago Style (17th ed.) Citation

Yuan Li, Keli Luo, Yi Tang, Ge Lin, Guangxiu Lu, and Fei Gong. Progesterone/estradiol Ratio <0.25 on the Day of Human Chorionic Gonadotropin Administration Is Associated with Adverse Pregnancy Outcomes in Prolonged Protocols for In vitro Fertilization/intracytoplasmic Sperm Injection. Elsevier, 2017.

MLA (9th ed.) Citation

Yuan Li, et al. Progesterone/estradiol Ratio <0.25 on the Day of Human Chorionic Gonadotropin Administration Is Associated with Adverse Pregnancy Outcomes in Prolonged Protocols for In vitro Fertilization/intracytoplasmic Sperm Injection. Elsevier, 2017.