1. http://www.fda.gov/regulatoryinformation/legislation/federalfooddrugandcosmeticactFDCAct/default.htm.
2. http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm322856.htm.
3. The History of Medicine: Early Civilizations, Prehistoric Times to 500 C.E;Kelly,2009
4. The Beginning of Drug Therapy: Ancient Mesopotamian Medicine;Borchardt;Drug News Perspect.,2002
5. The Papyrus Ebers,1931