1. Semmelweis University; Department of Neurology; Balassa u. 6. Budapest Hungary H-1083
2. West China Hospital, Sichuan University; Department of Neurology; No. 37, Guo Xue Xiang Chengdu Sichuan Province China 610041
3. Universidade Federal de São Paulo; Rua Claudio Rossi, 394 São Paulo Brazil 01547-000
4. University of Debrecen, Health Science and Medical Center; Department of Neurology; Móricz Zs. krt. 22 Debrecen Hungary H-4032