[1] Italian Multiple Sclerosis Soc, Genoa, Italy
[2] Univ Brescia, Brescia, Italy
[3] Belgian MS Soc, Brussels, Belgium
[4] MS Soc Luxembourg, Luxembourg, Luxembourg
[5] Danish MS Soc, Valby, Denmark
[6] MS Soc Norway, Oslo, Norway
[7] MS Soc Czech Republ, Prague, Czech Republic
[8] Finnish MS Soc, Masku, Finland
[9] MS Soc Slovakia, Trnava, Slovakia
[10] Romanian MS Soc, Oradea, Romania
[11] Austrian MS Soc, Vienna, Austria
[12] MS Soc Malta, Birkirkara, Malta
[13] MS Soc Ireland, Dublin, Ireland
[14] MS Soc Bosnia & Herzegovina, Sarajevo, Bosnia & Herceg
[15] MS Soc Spain, Madrid, Spain
[16] MS Soc Serbia, Belgrade, Serbia
[17] W Tallinn Cent Hosp, Estonian MS Ctr, Tallinn, Estonia
[18] MS Soc Greece, Thessaloniki, Greece
[19] Mellen Ctr MS, Cleveland, OH USA