. 2013 Jan 2;97(2):419–427. doi: 10.3945/ajcn.112.041582
© 2013 American Society for Nutrition
This is a free access article, distributed under terms (http://www.nutrition.org/publications/guidelines-and-policies/license/) which permit unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.