Andrea R. Genazzani is President of the International Society of Gynecological Endocrinology, President of the European Society of Gynecology, Past President of the International Menopause Society, Executive Secretary of the International Academy of Human Reproduction, Fellow ad eundem of the Royal College of Obstetricians and Gynaecologists, Editor-in-Chief of Gynecological Endocrinology since 1987. He is author of more than 742 papers in peer reviewed journals and Editor of more than 42 books.Basil Tarlatzis is Professor of Obstetrics, Gynaecology & Reproductive Medicine and Dean of the School of Medicine, Aristotle University of Thessaloniki, Greece. He is Visiting Professor, Faculty of Medicine and Pharmacy, Dutch-speaking Brussels Free University (AZ-VUB) and Deputy Chairman of the National Authority of Medically Assisted Reproduction. Past Chairman of the European Society of Human Reproduction and Embryology (ESHRE) and Member of the Ethics and Law Committee of ESHRE. Prof Tarlatzis is Past President of the International Federation of Fertility Societies (IFFS) and member of 22 National and 18 International Scientific Societies and of 7 National and 14 International editorial boards.