FSHB and polycystic ovary syndrome: Genetic variant −211 G>T FSHB (rs10835638) was determinant of serum FSH and LH levels in eumenorrheic healthy and infertile women [38], and associated with the response to controlled ovarian hyperstimulation, LH concentration, antral follicle counting, oocytes retrieval and embryos [39], and PCOS [40].