1. http://www.ncbi.nlm.nih.gov/pubmed/20888548

2. http://www.ncbi.nlm.nih.gov/pubmed/16391215

3. http://jama.jamanetwork.com/article.aspx?articleid=202339

4. http://jama.jamanetwork.com/article.aspx?articleid=377969

5. http://www.bmj.com/content/346/bmj.e8539

6. http://www.ncbi.nlm.nih.gov/pubmed/16340654

7 http://www.ncbi.nlm.nih.gov/pubmed/23021013

8. http://www.jissn.com/content/1/1/45

9. http://www.nutritionandmetabolism.com/content/2/1/25

10. http://ajcn.nutrition.org/.../01/13/ajcn.2009.27725.abstract

11. http://www.ncbi.nlm.nih.gov/pubmed/19364995

12. http://ajcn.nutrition.org/content/67/5/828.short

13. http://www.ncbi.nlm.nih.gov/pubmed/21735439

14. http://www.ncbi.nlm.nih.gov/pubmed/12535503

15. http://www.metabolismjournal.com/.../S0026-0495.../abstract

16. http://link.springer.com/article/10.1007%2Fs00394-012-0418-1

17. http://www.nature.com/.../jou.../v64/n6/abs/ejcn201045a.html

18. http://ajcn.nutrition.org/content/92/1/34

19. http://www.nutritionj.com/content/3/1/9

20. http://www.ncbi.nlm.nih.gov/pubmed/11838888

21. http://www.ncbi.nlm.nih.gov/pubmed/20565999