1. Regulation (EC) No 1394/2007 of the European Parliament and of the Council on advanced therapy medicinal products and amending Directive 2001/83/EC and Regulation (EC) No 726/2004
2. Reflection paper on classification of advanced therapy medicinal products, Committee for Advanced Therapy (CAT). Accessed 7 Dec 2012
3. European Commission, The Rules Governing Medicinal Products in the European Union. Volume 4-Guidelines for good manufacturing practices for medicinal products for human and veterinary use. Current Edition
4. Recommendation on the Validation of Aseptic Processes PI 007-6 (2011)
5. Reflection paper on in-vitro cultured chondrocyte containing products for cartilage repair of the knee, Committee for Advanced Therapy (CAT). Accessed 8 Apr 2010