Repeatability and measurement error in the assessment of choline and betaine dietary intake: the Atherosclerosis Risk in Communities (ARIC) Study

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Aurelian Bidulescu^*, Lloyd E Chambless, Anna M Siega-Riz, Steven H Zeisel and Gerardo Heiss

Nutrition Journal 2009, 8:14 doi:10.1186/1475-2891-8-14