1. Ashford P, Butch S, Grabowski S, Georgsen J, Muon M, Distler P (2009) ISBT 128 Standard Technical Specification, Version 3.6.0. ICCBBA. http://iccbba.org/technicalspecification.pdf Accessed 29 April 2010
2. CEN/ISSS Workshop Agreement (2008) Coding of information and traceability of human tissues and cells. CEN. ftp://cenftp1.cenorm.be/PUBLIC/CWAs/e-Europe/Tissues_cells/CWA15849-2008-publishedtext.pdf . Accessed 19 November 2009
3. EUROCET (2005) European registry for organs, tissues and cells. http://www.eurocet.org/ . Accessed 29 April 2010
4. Eurocode-Guideline: data structure, version 1.1.1. (2004) Eurocode IBLS e.V. http://www.eurocode.org/guides/index.html . Accessed 29 April 2010
5. European Commission (2004) Directive 2004/23/EC of the European Parliament and of the Council on setting standards of quality and safety for the donation, procurement, testing, processing, preservation, storage and distribution of human tissues and cells. EUR-Lex. http://ec.europa.eu/health/ph_threats/human_substance/legal_tissues_cells_en.htm . Accessed 19 November 2009