Correction

Correction for:   Cumming SA, Jimenez-Moreno C, Okkersen K, Wenninger S, Daidj F, Hogarth F, Littleford R, Gorman G, Bassez G, Schoser B, Lochmüller H, van Engelen BGM, Monckton DG; OPTIMISTIC Consortium.  Genetic determinants of disease severity in the myotonic dystrophy type 1 OPTIMISTIC cohort.  Neurology. 2019 Sep 3;93(10):e995-e1009. doi: 10.1212/WNL.0000000000008056.  PMID: 31395669