Association between female waist-hip ratio and live birth in patients undergoing in vitro fertilization: a retrospective cohort study - Ye, Mingming; Yang, Yingying; Cai, Chenting; Li, Zhen; Qiu, Andong; He, Jia; Ma, Jing; Bukulmez, Orhan; Norman, Robert J.; Teng, Xiaoming; Chen, Miaoxin (Frontiers in Endocrinology, 2025)