SHBG and Insulin resistance: The Cut-Off for Triglyceride-Glucose-Body Mass Index (TyG-BMI) and Triglyceride-Glucose-Waist Circumference Index (TyG-WC) Discriminating the Insulin Resistance Based on the SHBG Level and HOMA-IR Value in Caucasian Women with Polycystic Ovary Syndrome.