Fertility and ART Department, Brest University Hospital, 2 Avenue Foch, 29200, Brest, France. philippe.merviel@chu-brest.fr. Fertility and ART Department, Brest University Hospital, 2 Avenue Foch, 29200, Brest, France. Endocrinology and Metabolism Department, Brest University Hospital, Boulevard Tanguy Prigent, 29200, Brest, France.