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Vioque, J; Weinbrenner, T; Asensio, L; Castello, A; Young, IS; Fletcher, A; (2007) Plasma concentrations of carotenoids and vitamin C are better correlated with dietary intake in normal weight than overweight and obese elderly subjects. The British journal of nutrition, 97 (5). pp. 977-986. ISSN 0007-1145 DOI: https://doi.org/10.1017/S0007114507659017

Liew, SHM; Gilbert, CE; Spector, TD; Mellerio, J; van Kuijk, FJ; Beatty, S; Fitzke, F; Marshall, J; Hammond, CJ; (2006) Central retinal thickness is positively correlated with macular pigment optical density. Experimental eye research, 82 (5). pp. 915-920. ISSN 0014-4835 DOI: https://doi.org/10.1016/j.exer.2005.10.014 Full text not available from this repository.

Fletcher, AE; Breeze, E; Shetty, PS; (2003) Antioxidant vitamins and mortality in older persons: findings from the nutrition add-on study to the Medical Research Council Trial of Assessment and Management of Older People in the Community. The American journal of clinical nutrition, 78 (5). pp. 999-1010. ISSN 0002-9165 https://researchonline.lshtm.ac.uk/id/eprint/15905 Full text not available from this repository.

Bates, CJ; Matthews, N; West, B; Morison, L; Walraven, G; (2002) Plasma carotenoid and vitamin E concentrations in women living in a rural West African (Gambian) community. International journal for vitamin and nutrition research Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung Journal international de vitaminologie et de nutrition, 72 (3). pp. 133-41. ISSN 0300-9831 DOI: https://doi.org/10.1024/0300-9831.72.3.133 Full text not available from this repository.