Using smart card technology to monitor the eating habits of children in a school cafeteria: 1. Developing and validating the methodology.

Abstract

OBJECTIVE The aim of the study was to test the feasibility of using smart card technology to track the eating behaviours of nearly a thousand children in a school cafeteria. METHODS Within a large boys' school a smart card based system was developed that was capable of providing a full electronic audit of all the individual transactions that occurred… (More)

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