Correction to : Neurological Sciences (2021)

https://doi.org/10.1007/s10072-021-05756-4

Originally, affiliation 1 incorrectly presented online. Affiliation 1 should be change to “Functional Neurosurgery Research Center, Shohada Tajrish Neurosurgical Comprehensive Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran”.

The original article has been corrected.