[1] Kings Coll London, Dept Basic & Clin Neurosci, Maurice Wohl Clin Neurosci Inst, London, England
[2] Umea Univ, Dept Pharmacol & Clin Neurosci, Umea, Sweden
[3] Univ Edinburgh, Edinburgh, Midlothian, Scotland
[4] Univ Torino, ALS Ctr, Rita Levi Montalcini Dept Neurosci, Turin, Italy
[5] CHU Tours, Ctr Competence SLA Federat Tours Limoges, Tours, France
[6] CHU Limoges, Ctr Competence SLA Federat Tours Limoges, Limoges, France
[7] Linkoping Univ, Dept Neurol, Linkoping, Sweden
[8] Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden
[9] Univ Lisbon, Fac Med, Inst Phys, Inst Mol Med, Lisbon, Portugal
[10] H Santa Maria CHLN, Dept Neurosci & Mental Hlth, Lisbon, Portugal
[11] CHU Nice, Hop Pasteur 2, Nice, France
[12] Alfried Krupp Hosp, Essen, Germany
[13] Jena Univ Hosp, Hans Berger Dept Neurol, Jena, Germany
[14] Kershus Univ Lorenskog, Lorenskog, Norway
[15] Karolinska Inst, Stockholm, Sweden
[16] Bispebjerg Hosp, Dept Neurol, Copenhagen, Denmark
[17] Sykehuset Innlandet, Avdeling Nevrologi Klin Nevrofysiol, Lillehammer, Norway
[18] Univ Med Gottingen, Dept Neurol, Gottingen, Germany
[19] Univ Med Ctr Ljubljana, Inst Clin Neurophysiol, Ljubljana, Slovenia
[20] Med Univ Warsaw, Dept Neurol, Warsaw, Poland
[21] Univ Helsinki, Cent Hosp, Helsinki, Finland
[22] Univ Ulm, Dept Neurol, Ulm, Germany
[23] Univ Sheffield, Sheffield Inst Translat Neurosci, Sheffield, S Yorkshire, England
[24] Univ Med Berlin, ALS Outpatient Dept, Charite, Berlin, Germany
[25] Sahlgrens Univ Hosp, Gothenburg, Sweden
[26] Hosp San Rafael, ALS Unit, Madrid, Spain
[27] Uppsala Univ, Uppsala, Sweden
[28] Hannover Med Sch, Dept Neurol, Hannover, Germany
[29] Univ Bellvitge, IDIBELL, Neurol Dept Hosp, Barcelona, Spain
[30] Hop Salptriere, Paris, France
[31] Univ Milan, IRCCS Ist Auxol Italiano, Dept Neurol, Stroke Unit, Milan, Italy
[32] Univ Milan, IRCCS Ist Auxol Italiano, Neurosci Lab, Dept Pathophysiol & Transplantat,Ctr Neurotechnol, Milan, Italy
[33] Lund Univ, Lund, Sweden
[34] Univ Oxford, Nuffield Dept, Clin Neurosci, Oxford, England
[35] Haukeland Univ Sjukehus, Bergen, Norway
[36] Univ Leuven, KU Leuven, Dept Neurosci Expt Neurol, Leuven, Belgium
[37] VIB Ctr Brain & Dis Res, Leuven, Belgium
[38] Univ Hosp Leuven, Dept Neurol, Leuven, Belgium
[39] Univ Amsterdam Ctr, Acad Med Ctr, Dept Neurol, Amsterdam, Netherlands
[40] Kantonssp St Gallen, ALS Clin, Neuromuscular Dis Ctr, St Gallen, Switzerland
[41] Univ Bonn, Dept Neurodegenerat Dis & Gerontopsychiatry, Bonn, Germany
[42] Diakonissen Hosp, Dept Neurol, Mannheim, Germany
[43] Trinity Coll Dublin, Trinity Biomed Sci Inst, Acad Unit Neurol, Dublin, Ireland
[44] Univ Med Ctr Utrecht, Brain Ctr Rudolf Magnus, Dept Neurol, Utrecht, Netherlands