Differences between food group reports of low-energy reporters and non-low-energy reporters on a food frequency questionnaire.
Millen AE, Tooze JA, Subar AF, Kahle LL, Schatzkin A, Krebs-Smith SM. Differences between food group reports of low-energy reporters and non-low-energy reporters on a food frequency questionnaire. J Am Diet Assoc. 2009 Jul; 109(7):1194-203.