Stress-induced Childhood Onset Neurodegeneration with Ataxia and Seizures (CONDSIAS) presenting with torticollis attacks: Phenotypic variability of the same mutation in two Turkish... oleh Gulten Ozturk, Akif Ayaz, Yasemin Topcu, Gülcan Akyuz, Olcay Unver, Ismail Hakk Akbeyaz, Gazanfer Ekinci, Dilsad Turkdogan