Correction to: Neurol Sci (2017) 38:1849–1858

https://doi.org/10.1007/s10072-017-3081-8

The original version contained a mistake. The authors have specified only in a few paragraphs that all the contents of the paper are meant for Copaxone but not for unbranded glatiramer acetate, Authors ask to add the specification of Copaxone or branded glatiramer acetate everytime.