1. Institut für Deutsche Sprache und Linguistik, Humboldt-Universität zu Berlin, Berlin, Germany
2. Behavioral Neurology and Movement Disorders Unit, Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
3. Department of Speech and Language Therapy, Faculty of Health Science, Sıtkı Koçman University, Muğla, Turkey
4. Department of Speech and Language Therapy, Faculty of Health Science, Anadolu University, Eskişehir, Turkey