Research Center for Reproductive Medicine, Gynecological Endocrinology and Menopause, IRCCS San Matteo Foundation, Pavia, Italy

Department of Clinical and Experimental Medicine, Division of Obstetrics and Gynecology,  University of Pisa, Italy

Department of Maternal and Child Health, Careggi University Hospital, Florence, Italy

Department of Gynecological Endocrinology, Poznan University of Medical Sciences, Poznan, Poland

Postgraduate School of Health, Holy Spirit University, Samborondón, Ecuador