Godwin, S.; Chambers, E. IV; Cleveland, L.; Ingwersen, L. - 2006
patient counseling. Portion size estimation aids usually increase accuracy of consumers' reports of the amount of food they … easily estimated by previously available portion size estimation aids. In focus groups, respondents indicate they need a … portion size estimation aid that is easier to use than a ruler for portion estimation of wedge-shaped foods. An adjustable …