1. Department of Molecular Genetics and Biochemistry,1
2. Duchenne Muscular Dystrophy Research Center (DMDRC),2 and
3. National Defense Medical Center, Taipei, Taiwan3; and
4. Research Center for Genetic Medicine, Children's National Medical Center, Washington, D.C.4
5. Department of Pediatrics and Magee-Women's Research Institute,5 University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania;