Validation Data Based on a Web-Based Photographic Questionnaire for Assessment of Skills in Estimating Carbohydrate Portion Sizes in Adults with Type 1 Diabetes. JCNFS [Internet]. 2019 May 16 [cited 2026 Oct. 31];2(2). Available from: https://somatopub.com/index.php/JCNFS/article/view/268