Food photographs in nutritional surveillance: errors in portion size estimation using drawings of bread and photographs of margarine and beverages consumption

Publisher: Cambridge University Press

E-ISSN: 1475-2662|105|7|1073-1083

ISSN: 0007-1145

Source: British Journal of Nutrition, Vol.105, Iss.7, 2011-04, pp. : 1073-1083

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Abstract