• www.fda.gov (U.S. Food and Drug Administration)

• www.ema.europa.eu (European Medicines Agency)

• www.ich.org (International Conference on Harmonization)

• www.iso.org (International Organization for Standardization)

• www.celltherapy.org (International Society for Cellular Therapy)

• www.asgct.org (American Society of Gene and Cell Therapy)

• www.esgct.eu (European Society of Gene and Cell Therapy)

• www.iscgt.net (International Society for Cell and Gene Therapy of Cancer)

• www.isscr.org (International Society for Stem Cell Research)

• www.aabb.org (American Association of Blood Banks)

• www.aatb.org (American Association of Tissue Banks)

• www.factwebsite.org (Foundation for the Accreditation of Cellular Therapy)

• www.pda.org (Parenteral Drug Asociation)

• www.asscr.org (Australasian Society for Stem Cell Research)

• www.cirm.ca.gov (California Institute for Regenerative Medicine)