1. Immunogenetics Laboratory, Department of Neurology; Medical School of National and Kapodistrian University of Athens, Aeginition Hospital; Athens Greece
2. 1st Department of Neurology; Medical School of National and Kapodistrian University of Athens, Aeginition Hospital; Athens Greece
3. Department of Neurology; “Thriassion” General Hospital of Eleusis; Athens Greece
4. Laboratory of Electromyography and Clinical Neurophysiology, Department of Neurology; Medical School of National and Kapodistrian University of Athens, Aeginition Hospital; Athens Greece