1 Department of Medicine and Clinical and Translational Science Institute, Division of Endocrinology, The Lundquist Institute and Harbor-UCLA Medical Center, Torrance, California, USA.
2 First Department of Obstetrics and Gynecology, Unit of Reproductive Endocrinology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
3 Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.