[1] Neurology Department,
[2] Northwestern University Medical School,undefined
[3] Chicago,undefined
[4] IL 60611,undefined
[5] USA,undefined
[6] Section of Medical Genetics,undefined
[7] Department of Medicine,undefined
[8] Box 3445,undefined
[9] Duke University Medical Center,undefined
[10] Durham,undefined
[11] NC 27710,undefined
[12] USA Tel.: (919) 684-2063; Fax: (919) 684-2275; e-mail: mpv@locus.mc.duke.edu,undefined
[13] Division of Neurology,undefined
[14] Department of Medicine,undefined
[15] Duke Medical Center,undefined
[16] Durham,undefined
[17] NC 27710,undefined
[18] USA,undefined
[19] Molecular Neurogenetics and the Day Neuromuscular Research Laboratory,undefined
[20] Massachusetts,undefined
[21] General Hospital,undefined
[22] Charlestown,undefined
[23] MA 02129,undefined
[24] USA,undefined
[25] Howard Hughes Medical Institute,undefined
[26] Massachusetts Institute of Technology,undefined
[27] Boston,undefined
[28] MA 02139,undefined
[29] USA,undefined