Tetens, I., A. Biltoft-Jensen, C. Spagner, T. Christensen, M.-B. Gille, S. Bügel, and L. Banke Rasmussen. “Intake of Micronutrients Among Danish Adult Users and Non-Users of Dietary Supplements”. Food & Nutrition Research, Sept. 2011, https://foodandnutritionresearch.net/index.php/fnr/article/view/582.