Evangelia Zampeli1, Aikaterini Pantelidaki2, Haralampos M Moutsopoulos3. 1. Institute for Autoimmune Systemic and Neurological Diseases, Athens, Greece. zampelieva@gmail.com. 2. Pathologist, Michalakopoulou 42, Athens, Greece. 3. Institute for Autoimmune Systemic and Neurological Diseases, Athens; Academy of Athens, and Department of Pathophysiology, Medical School, National and Kapodistrian University of Athens, Greece.