1. Thrombosis and Haemostasis Unit, Fondazione I.R.C.C.S. “Casa Sollievo della Sofferenza”, S. Giovanni Rotondo (Foggia), Italy
2. Ob/Gyn Department of The First I.M. Sechenov Moscow State Medical University, Moscow, Russia
3. Obstetrics and Gynaecology, University of Foggia, Foggia, Italy
4. Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA