1. Department of Gynecology and Obstetrics, Spitalregion Fürstenland Toggenburg, Wil, Switzerland
2. Center of Gynecology and Medical Sexology, H. San Raffaele Resnati, Milan, Italy
3. Department of Obstetrics and Gynecology, Verona University, Italy
4. Specialty School, Endocrinology and Metabolic Diseases Department, Federico II University, Naples, Italy
5. Graziottin Foundation for the Cure and Care of Pain in Women- NPO, Milan, Italy