Genetic determinants of disease severity in the myotonic dystrophy type 1 OPTIMISTIC cohort

In the article “Genetic determinants of disease severity in the myotonic dystrophy type 1 OPTIMISTIC cohort” by Cumming et al.,¹ the study funding section should have read “Study funded by European Union's Seventh Framework Programme (FP7/2007–2013) under grant agreement number 305697 (the OPTIMISTIC project), the Wellcome Centre for Mitochondrial Research (ref 203105/Z/16/Z)), and donations to the DGM group from the Myotonic Dystrophy Support Group. The funders had no role in the study design, data collection, analysis, interpretation of data, writing the report, or decisions regarding when to submit publications.” The authors regret the error.