,
Rovira, Àlex
Wattjes, Mike P.
Tintoré, Mar
Tur, Carmen
Yousry, Tarek A.
Sormani, Maria P.
De Stefano, Nicola
Filippi, Massimo
Auger, Cristina
Rocca, Maria A.
Barkhof, Frederik
Fazekas, Franz
Kappos, Ludwig
Polman, Chris
Miller, David
Montalban, Xavier
Article History
First Online: 7 July 2015
Change Date: 6 August 2015
Change Type: Correction
Change Details: In the version of this article originally published online, the last bullet point and footnote from Box 2 were missing. This mistake has been corrected for the print and online versions.
Competing interests
: The authors declare no competing financial interests.