1. STUDENT SOCIETY OF NEUROLOGY AT THE DEPARTMENT OF NEUROLOGY, INSTITUTE OF MEDICAL SCIENCES, UNIVERSITY OF OPOLE, OPOLE, POLAND
2. NEUROLOGY AND STROKE UNIT, ST. JADWIGA’S REGIONAL SPECIALIZED HOSPITAL IN OPOLE, OPOLE, POLAND
3. NEUROLOGY AND STROKE UNIT, ST. JADWIGA’S REGIONAL SPECIALIZED HOSPITAL IN OPOLE, OPOLE, POLAND; DEPARTMENT OF NEUROLOGY, INSTITUTE OF MEDICAL SCIENCES, UNIVERSITY OF OPOLE, OPOLE, POLAND