Test-retest reproducibility of a food frequency questionnaire (FFQ) and estimated effects on disease risk in the Norwegian Women and Cancer Study (NOWAC)

Research

Christine L Parr^*, Marit B Veierød, Petter Laake, Eiliv Lund and Anette Hjartåker

Nutrition Journal 2006, 5:4 doi:10.1186/1475-2891-5-4

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