Based on the results from mutual information analyses, and RFE analyses, the features selected for the next step of model construction are: maternal age, paternal age, previous gravidity, total Gn dose, number of oocytes retrieved, endometrial thickness, Gn duration, infertility duration, BMI, basal FSH, basal LH and trigger day estradiol. The gene discussed is BRD2; the disease is Infertility.