Conflicts of interest
LG received travel grants from Biogen, Novartis, Teva, Sanofi Genzyme and Almirall to attend national and international conferences. LP has received research grant from Associazione Italiana Sclerosi Multipla (AISM) and Genzyme; consulting and/or lecture fees and travel grants from Biogen, Genzyme, Novartis and Teva. AM received travel grants from Teva and Sanofi Genzyme to attend national conferences. CP has received consulting and/or lecture fees and/or research funding and travel grant from Almirall, Bayer Schering, Biogen Idec, Genzyme, Merck Serono, Novartis, Roche and Teva. PC received/receive research support from Bayer Schering, Biogen-Dompé, Boehringer Ingelheim, Eisai, Lundbeck, Merck-Serono, Novartis, Sanofi-Aventis, Sigma-Tau, and UCB Pharma. MDF participated to advisory boards and received speaker/writing honoraria and funding for traveling from: Bayer, Biogen Idec, Genzyme, Merck, Novartis, Roche and Teva. PE, PS, MCC report no conflicts of interests.