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Evaluation of a Web-Based Food Record for Children Using Direct Unobtrusive Lunch Observations: A Validation Study

Evaluation of a Web-Based Food Record for Children Using Direct Unobtrusive Lunch Observations: A Validation Study

The portion sizes of the omitted and intruded food items were counted using 4 different categories as follows: extra small (XS), small (S), medium (M), and large (L), based on the available photo series in the Web FR.

Anine Christine Medin, Helene Astrup, Britt Marlene Kåsin, Lene Frost Andersen

J Med Internet Res 2015;17(12):e273