RT Journal Article SR Electronic T1 Progressive myoclonus epilepsy of Unverricht‐Lundborg type JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 2384 OP 2384 DO 10.1212/WNL.43.11.2384 VO 43 IS 11 A1 A.-E. Lehesjoki A1 R. Eldridge A1 J. Eldridge A1 B. J. Wilder A1 A. de la Chapelle YR 1993 UL http://n.neurology.org/content/43/11/2384.abstract AB We describe clinical and molecular genetic data on a family from the United States in which four of five sibs are affected with progressive myoclonus epilepsy of Unverricht-Lundborg type. The gene for this disorder (EPM1) has previously been mapped to the distal region of chromosome 21. Molecular genetic results suggest that the disease gene in this family is linked to the same region of chromosome 21. Crossover events in the family help refine the gene localization by placing EPM1 between loci CBS and D21S112.