Abicht A, Stucka R, Karcagi V, Herczegfalvi A, Horváth R, Mortier W, Schara U, Ramaekers V, Jost W, Brunner J, Janssen G, Seidel U, Schlotter B, Müller-Felber W, Pongratz D, Rüdel R, Lochmüller H. A common mutation (epsilon1267delG) in congenital myasthenic patients of Gypsy ethnic origin. Neurology. 1999 Oct 22;53(7):1564–9. doi: 10.1212/wnl.53.7.1564. PMID: 10534268.