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Freedman LS, Kipnis V, Schatzkin A, Tasevska N, Potischman N. Can we use biomarkers in combination with self-reports to strengthen the analysis of nutritional epidemiologic studies? Epidemiologic Perspectives & Innovations. 2010 Jan 20;7(1):1–9. doi: 10.1186/1742-5573-7-2. |