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Number of 24-hour diet recalls needed to estimate energy intake.
Ma Y, Olendzki BC, Pagoto SL, Hurley TG, Magner RP, Ockene IS, Schneider KL, Merriam PA, Hébert JR. Ma Y, et al. Ann Epidemiol. 2009 Aug;19(8):553-9. doi: 10.1016/j.annepidem.2009.04.010. Ann Epidemiol. 2009. PMID: 19576535 Free PMC article.