Panagiotis Anagnostis1, Eleftheria Lefkou2, Dimitrios G Goulis1. 1. 1 Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki , Thessaloniki, Greece . 2. 2 Hematology Unit, Hippokration Hospital of Thessaloniki , Thessaloniki, Greece .