BRD2 and Infertility: Baseline parameters including maternal age, BMI, duration of infertility, infertility type, infertility cause, stimulation protocol, basal FSH level, basal LH level, Gn starting dose, Gn total dose, days of stimulation, endometrial thickness at the first fresh cycle, endometrial pattern at the first fresh cycle, fertilization method, and the number of transferred embryos.