Cheadle A, Psaty B, Wagner E, Diehr P, Koepsell T, Curry S, Von Korff M. Evaluating community-based nutrition programs: assessing the reliability of a survey of grocery store product displays. Am J Public Health. 1990 Jun;80(6):709-11.
Cheadle A, Psaty B, Wagner E, Diehr P, Koepsell T, Curry S, Von Korff M. Evaluating community-based nutrition programs: assessing the reliability of a survey of grocery store product displays. Am J Public Health. 1990 Jun;80(6):709-11.