About the Authors

Kathryn J. Swoboda

Swoboda@genetics.utah.edu

Affiliation Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, United States of America

Charles B. Scott

Affiliation CBS Squared, Inc, Fort Washington, Pennsylvania, United States of America

Thomas O. Crawford

Affiliation Departments of Neurology and Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Louise R. Simard

Affiliation Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada

Sandra P. Reyna

Affiliation Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, United States of America

Kristin J. Krosschell

Affiliation Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America

Gyula Acsadi

Affiliation Departments of Neurology and Pediatrics, Wayne State University School of Medicine, Detroit, Michigan, United States of America

Bakri Elsheik

Affiliation Department of Neurology, Ohio State University Medical Center, Columbus, Ohio, United States of America

Mary K. Schroth

Affiliation Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America

Guy D'Anjou

Affiliation Division of Pediatric Neurology, Ste-Justine Hospital, Montréal, Québec, Canada

Bernard LaSalle

Affiliation General Clinical Research Center, University of Utah School of Medicine, Salt Lake City, Utah, United States of America

Thomas W. Prior

Affiliation Department of Molecular Pathology, Ohio State University, Columbus, Ohio, United States of America

Susan L. Sorenson

Affiliation Primary Children's Medical Center, Salt Lake City, Utah, United States of America

Jo Anne Maczulski

Affiliation Pediatric Occupational Therapy Services, Chicago, Illinois, United States of America

Mark B. Bromberg

Affiliation Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, United States of America

Gary M. Chan

Affiliation Department of Pediatric Neonatology, University of Utah, Salt Lake City, Utah, United States of America

John T. Kissel

Affiliation Department of Neurology, Ohio State University Medical Center, Columbus, Ohio, United States of America

for the Project Cure Spinal Muscular Atrophy Investigators Network

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KJS CBS TOC SPR KJK GA MKS GD JAM MBB JTK. Performed the experiments: KJS TOC LRS GA BE MKS GD TWP GMC JTK. Analyzed the data: CBS LRS BL SLS GMC. Contributed reagents/materials/analysis tools: LRS KJK BL TWP SLS JAM. Wrote the paper: KJS CBS SPR KJK MBB JTK.