[1] Umea Univ, Umea, Sweden
[2] Umea Univ, Dept Publ Hlth & Clin Med, Umea, Sweden
[3] Governo Republ Portuguesa, Lisbon, Portugal
[4] Boston Univ, Boston, MA USA
[5] Republ Francaise, Paris, France
[6] Johns Hopkins Univ, Baltimore, MD USA
[7] Timone Univ Hosp, Referral Ctr Neuromuscular Dis & ALS, APHM, Marseille, France
[8] Euro NMD, Filnemus, Marseille, France
[9] Univ London, London, England
[10] Mayo Fdn Med Educ & Res, Rochester, MN USA
[11] Ctr Hosp Univ Santo Antonio, Unidade Corino Andrade, Porto, Portugal
[12] AstraZeneca, BioPharmaceut R, Gaithersburg, MD USA
[13] Ionis Pharmaceut Inc, Clin Dev, Carlsbad, CA USA