Erratum to: Acta Neurol Belg DOI 10.1007/s13760-013-0267-6

The correct order of the authors affiliations is given below.

The Acknowledgment section should read:

Acknowledgments This study was partially supported by the National Key Department of Neurology funded by Chinese Health and Family Planning Committee, the National Natural Science Foundation of China (30600656), the key project of Science and Technology Plan of Beijing Municipal Education Commission (KZ200910025005), Beijing Outstanding Talents Cultivation Fund (2012D005018000007), the High-Level Health Techonology Talent Construction Programme of Beijing Municiple Health Bureau 2013.