consultancy,
Biogen Idec, Genzyme, Merck Serono, Novartis, Grifols; grants/grants pending,
Biogen Idec; speaking fees, Biogen Idec, Genzyme, Merck Serono, Novartis, Bayer Healthcare, Sanofi-Aventis; paid educational presentations, Novartis. M.H.: consultancy, Biogen Idec; grant/grants pending, Health Research Board Ireland; speaking fees, Biogen Idec. L.K.