Marques-Vidal , Pedro, Alastair Ross, Emma Wynn, Serge Rezzi, Fred Paccaud, and Bernard Decarli. “Reproducibility and Relative Validity of a Food-Frequency Questionnaire for French-Speaking Swiss Adults”. Food & Nutrition Research00 (May 6, 2011). Accessed April 4, 2026. https://foodandnutritionresearch.net/index.php/fnr/article/view/591.