We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleNumber of Days of Food Intake Records Required to Estimate Individual and Group Nutrient Intakes with Defined ConfidenceAuthorsBasiotis, P. Peter; Welsh, Susan O.; Cronin, Frances J.; Kelsay, June L.; Mertz, WalterPublicationThe Journal of Nutrition, 1987, Vol 117, Issue 9, p1638ISSN0022-3166Publication typearticleDOI10.1093/jn/117.9.1638