About the Authors

Gülsenay Citirak

Affiliation Neuromuscular Research Unit, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

Sanja Cejvanovic

Affiliation Neuromuscular Research Unit, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

Henning Andersen

Affiliation Department of Neurology, Aarhus University Hospital, Aarhus, Denmark

John Vissing

john.vissing@regionh.dk

Affiliation Neuromuscular Research Unit, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

Competing Interests

Dr. Vissing is a member of Genzyme’s Global Advisory Board for Pompe disease, and Drs. Andersen and Vissing have received travel grants and honoraria from Genzyme Corporation. The authors received no specific funding for this work. Drs. Vissing membership with Genzyme Corporation does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: JV SC GC. Data curation: JV GC SC HA. Formal analysis: JV GC. Investigation: JV GC SC. Methodology: JV SC GC. Project administration: JV. Supervision: JV. Writing – original draft: GC. Writing – review & editing: JV SC HA.