Özel-Kızıl, E. T., Turan, E. D., Yılmaz, E., Cangöz, B., & Uluç, S. (2010). Discriminant validity and reliability of the Turkish version of Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE-T). Archives of Clinical Neuropsychology, 25(2), 139-145. doi: 10.1093/arclin/acp103