[1] Univ Lille, Lille, France
[2] Univ Vita Salute San Raffaele, Milan, Italy
[3] Istanbul Univ, Istanbul, Turkey
[4] Univ Hosp San Carlos, Madrid, Spain
[5] Univ Munster, Munster, Germany
[6] Univ Hasselt, Rehabil & MS Ctr Overpelt, BIOMED, Hasselt, Belgium
[7] Univ Turku, Turku, Finland
[8] Imperial Coll London, London, England
[9] F Hoffmann La Roche Ltd, Basel, Switzerland