1. Barratt-Boyes B (1964) Homograft aortic valve replacement in aortic incompetence and stenosis. Thorax 19:131
2. Boethig D, Goerler H, Westhoff-Bleck M, Ono M, Daiber A, Haverich A, Breymann T (2007) Evaluation of 188 consecutive homografts implanted in pulmonary position after 20 years. Eur J Cardiothorac Surg 32:133–142
3. Commission Directive (2006a) 2006/17/EC of 8 February 2006 implementing Directive 2004/23/EC of the European Parliament and of the Council as regards certain technical requirements for the donation, procurement and testing of human tissues and cells. Official Journal of the European Union L 38/40 09/02/2006
4. Commission Directive (2006b) 2006/86/EC of 24 October 2006 implementing Directive 2004/23/EC of the European Parliament and of the Council as regards traceability requirements, notification of serious adverse reactions and events, and certain technical requirements for the coding, processing, preservation, storage and distribution of human tissues and cells. Official Journal of the European Union L 294/32 25/10/2006
5. Directive (2004) 2004/23/EC Of The European Parliament And Of The Council of 31 March 2004 on setting standards for quality and safety in the donation, procurement, processing, preservation, storage and distribution of human tissues and cells. Official Journal of the European Union L 102/48 07/04/2004