1. 1st Department of Internal Medicine, University of Athens, Laiko Hospital, 34 Aroes Street, P. Faliro, Athens, 175-62, Greece
2. 1st Department of Internal Medicine, University of Athens, Laiko Hospital, Athens, Greece; Department of Endocrinology, Hippokration Hospital, University of Athens, Athens, Greece; Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut