James G Tidball1
& Melissa J Spencer21
James G. Tidball is in the Department of Physiological Science, the Department of Pathology and Laboratory Medicine and the Duchenne Muscular Dystrophy Research Center, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA. jtidball@physci.ucla.edu
2
Melissa J Spencer is in the Department of Pediatrics and the Duchenne Muscular Dystrophy Research Center, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA.