Referanslar:
- http://www.homecuresthatwork.com/Slideshow/top-6-anti-aging-Supplements
- http://www.lifescript.com/Health/Centers/Alzheimers/Tips/5_anti-aging_supplements_worth_taking.aspx
- http://blog.LEF.org/2013/10/The-Top-3-anti-aging-Supplements.html