Cite
MLA Citation
Laurence S Freedman et al.. “Combining a Food Frequency Questionnaire With 24-Hour Recalls to Increase the Precision of Estimation of Usual Dietary Intakes—Evidence From the Validation Studies Pooling Project.” American journal of epidemiology, vol. 187, no. 10, 2018, pp. 2227–2232. http://access.bl.uk/ark:/81055/vdc_100095325059.0x000060