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Tsakos, G; Sheiham, A; Iliffe, S; Kharicha, K; Harari, D; Swift, CG; Gillmann, G; Stuck, AE (2009). The impact of educational level on oral health-related quality of life in older people in London. European journal of oral sciences, -(-), pp. 286-292. Chichester: Wiley-Blackwell 10.1111/j.1600-0722.2009.00619.x
