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<http://webisa.webdatacommons.org/122132522>	<http://www.w3.org/ns/prov#value>	"Ann Nutr Metab. 2010;57:153???162. doi: 10.1159/000321680. [PubMed] [Cross Ref]Marks GC, Hughes MC, van der Pols JC. Relative validity of food intake estimates using a food frequency questionnaire is associated with sex, age, and other personal characteristics." .
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