Nicklas, T. A., C. E. O’Neil, and V. L. Fulgoni III. “Consumption of Various Forms of Apples Is Associated With a Better Nutrient Intake and Improved Nutrient Adequacy in Diets of Children: National Health and Nutrition Examination Survey 2003-2010”. Food & Nutrition Research, vol. 59, Oct. 2015, doi:10.3402/fnr.v59.25948.