[1] Univ Texas Hlth Sci Ctr Houston, McGovern Med Sch, Houston, TX 77030 USA
[2] Vall dHebron Univ Hosp, Barcelona, Spain
[3] Univ Hosp, Basel, Switzerland
[4] Univ Calif San Francisco, San Francisco, CA 94143 USA
[5] Queen Mary Univ London, London, England
[6] Univ Hosp Strasbourg, Strasbourg, France
[7] Univ Penn, Philadelphia, PA 19104 USA
[8] Genentech Inc, San Francisco, CA 94080 USA
[9] F Hoffmann La Roche Ltd, Basel, Switzerland
[10] McGill Univ, Montreal, PQ, Canada
[11] NeuroRx Res, Montreal, PQ, Canada