Case study of sporadic mitochondrial disease with myotonic discharges and optic atrophy. Issue 2 (24th January 2013) - Soysal, Aysun; Yüksel, Burcu; Czermin, Birgit; Aydemir, Selcen; Tuğcu, Betül; Aysal, Fikret; Arpaci, Baki