About the Authors

Mark Screen

mark.screen@helsinki.fi

Affiliation Folkhälsan Institute of Genetics and Department of Medical Genetics, Haartman Institute, University of Helsinki, Helsinki, Finland

Olayinka Raheem

Affiliation Neuromuscular Research Unit, Department of Neurology, University Hospital and University of Tampere, Tampere, Finland

Jeanette Holmlund-Hampf

Affiliation Folkhälsan Institute of Genetics and Department of Medical Genetics, Haartman Institute, University of Helsinki, Helsinki, Finland

Per Harald Jonson

Affiliation Folkhälsan Institute of Genetics and Department of Medical Genetics, Haartman Institute, University of Helsinki, Helsinki, Finland

Sanna Huovinen

Affiliations Neuromuscular Research Unit, Department of Neurology, University Hospital and University of Tampere, Tampere, Finland, Department of Pathology, Fimlab Laboratories, Tampere University Hospital and University of Tampere, Tampere, Finland

Peter Hackman

Affiliation Folkhälsan Institute of Genetics and Department of Medical Genetics, Haartman Institute, University of Helsinki, Helsinki, Finland

Bjarne Udd

Affiliations Folkhälsan Institute of Genetics and Department of Medical Genetics, Haartman Institute, University of Helsinki, Helsinki, Finland, Neuromuscular Research Unit, Department of Neurology, University Hospital and University of Tampere, Tampere, Finland, Department of Neurology, Vaasa Central Hospital, Vaasa, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MS BU. Performed the experiments: MS OR JH. Analyzed the data: MS PHJ PH SH BU. Contributed reagents/materials/analysis tools: SH BU. Wrote the paper: MS PHJ PH BU.