1. Dietary reference intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and choline;Yates;J Am Diet Assoc,1998
2. Derivation of tolerable upper intake levels of nutrients;Munro;Am J Clin Nutr,2001
3. Standing Committee on the Scientific Evaluation of Dietary Reference Intakes 1997 Dietary Reference Intakes: Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride National Academy Press Washington, DC, USA
4. Health and Consumer Protection Directorate General 2002 Opinion of the Scientific Committee on Food on the Tolerable Upper Intake Level of Vitamin D
5. Efficacy and safety of vitamin D(3) intake exceeding the lowest observed adverse effect level;Vieth;Am J Clin Nutr,2001