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Baezner,                H., Blahak,                C.,              Poggesi, A.,                Pantoni,            L., Inzitari,                D.,                Chabriat,              H.,                Erkinjuntti,              T., Fazekas,                F., Ferro,                J. M.,                Langhorne,              P., O\u2019Brien,                J.,                Scheltens,              P., Visser,                M. C.,                Wahlund, L.              O., Waldemar,                G., Wallin,                A.,                Hennerici, M.              G., LADIS Study            Group          2008. Association of gait and balance disorders with            age-related white matter changes: the LADIS study.              <i>Neurology<\/i>          70: 935\u2013942.","DOI":"10.1212\/01.wnl.0000305959.46197.e6"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Bernedo,                V., Insua,                D., Su\u00e1rez,                M. 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The prevalence of visual impairment in people with            dementia (the PrOVIDe study): a cross-sectional study of people aged 60\u201389 years with            dementia and qualitative exploration of individual, carer and professional            perspectives. <i>Health Service and Delivery              Reseach<\/i>          4.","DOI":"10.3310\/hsdr04210"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. Chambers, J.                K., Uchida,                K. and                Nakayama,              H.          2012. White matter myelin loss in the brains of aged            dogs. <i>Exp. Gerontol.<\/i>          47: 263\u2013269.","DOI":"10.1016\/j.exger.2011.12.003"},{"key":"5","doi-asserted-by":"crossref","unstructured":"5. Chang, L.                Y., Lowe,                J.,              Ardiles, A.,                Lim, J.,                Grey, A.            C., Robertson,                K.,                Danesh-Meyer,              H., Palacios,                A. 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Doi,              T., Verghese,                J.,              Shimada, H.,                Makizako,              H.,                Tsutsumimoto,              K., Hotta,                R.,                Nakakubo,              S. and              Suzuki,            T.          2015. Motoric cognitive risk syndrome: prevalence and risk            factors in japanese seniors. <i>J. Am. Med. Dir.              Assoc.<\/i>          16: 1103.e21\u20131103.e25.","DOI":"10.1016\/j.jamda.2015.09.003"},{"key":"8","doi-asserted-by":"crossref","unstructured":"8. Fast,              R., Sch\u00fctt,                T., Toft,                N., M\u00f8ller,                A. and                Berendt,            M.          2013. An observational study with long-term follow-up of            canine cognitive dysfunction: clinical characteristics, survival, and risk            factors. <i>J. Vet. Intern. 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Montero-Odasso,                M.,                Oteng-Amoako,              A.,              Speechley,            M., Gopaul,                K.,                Beauchet,              O.,              Annweiler, C.            and Muir-Hunter, S.              W.          2014. The motor signature of mild cognitive impairment:            results from the gait and brain study. <i>J. Gerontol. A              Biol. Sci. Med. Sci.<\/i>          69: 1415\u20131421.","DOI":"10.1093\/gerona\/glu155"},{"key":"17","doi-asserted-by":"crossref","unstructured":"17. Ottaviano,                G.,              Frasson, G.,                Nardello,              E. and                Martini,            A.          2016. Olfaction deterioration in cognitive disorders in the            elderly. <i>Aging Clin. Exp. Res.<\/i>          28: 37\u201345.","DOI":"10.1007\/s40520-015-0380-x"},{"key":"18","doi-asserted-by":"crossref","unstructured":"18. Packer, R. M.                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Spierer,                O.,              Fischer, N.,                Barak, A.            and Belkin,            M.          2016. Correlation between vision and cognitive function in the            elderly: A Cross-Sectional Study. <i>Medicine              (Baltimore)<\/i>          95: e2423.","DOI":"10.1097\/MD.0000000000002423"},{"key":"25","unstructured":"25. Srikanth,                V., Beare,                R.,                Blizzard,              L., Phan,                T.,                Stapleton,              J., Chen,                J.,                Callisaya,              M., Martin,                K. and                Reutens,            D.          2009. 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