[1] Univ Calif Davis, Dept Neurol, Davis, CA USA
[2] Univ Calif Davis, Dept Pediat, Davis, CA USA
[3] Univ Calif Davis, Dept Biol Chem, Davis, CA USA
[4] Columbia Presbyterian Med Ctr, Dept Neurol, H Houston Merritt Clin Res Ctr Muscular Dystrophy, New York, NY 10032 USA