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Killen, Alison; Firbank, Michael J; Collerton, Daniel; Clarke, Michael; Jefferis, Joanna Mary; Taylor, John-Paul; McKeith, Ian G; Mosimann, Urs Peter (2013). The assessment of cognition in visually impaired older adults. Age and ageing, 42(1), pp. 98-102. Oxford: Oxford University Press 10.1093/ageing/afs157
