[1] SUNY Buffalo, Sch Med, Buffalo, NY 14260 USA
[2] Careggi Univ Hosp, Florence, Italy
[3] Meander Medisch Centrum, Amersfoort, Netherlands
[4] Univ Bordeaux, Bordeaux, France
[5] Yeshiva Univ, New York, NY 10033 USA
[6] Huddinge Univ Hosp, Stockholm, Sweden
[7] Masku Neurol Rehabil Ctr, Masku, Finland
[8] Univ Dusseldorf, Dusseldorf, Germany
[9] Albert Einstein Coll Med, New York, NY USA
[10] Univ Basel, Basel, Switzerland
[11] Univ Chicago, Chicago, IL 60637 USA
[12] Univ London, London, England