Riferimenti:
- http (informazioni in lingua://www.homecuresthatwork.com/slideshow/Top-6-anti-aging-Supplements
- http (informazioni in lingua://www.lifescript.com/Health/Centers/Alzheimers/Tips/5_anti-aging_supplements_worth_taking.aspx
- http (informazioni in lingua://Blog.lef.org/2013/10/The-Top-3-anti-aging-supplements.html