1. British Committee for Standards in Haematology. (2006) The specification and use of information technology systems in blood transfusion practice [WWW document]. URL http://www.bcshguidelines.org/pdf/computer_guide_220506.pdf (accessed on 28 February 2008)
2. The Blood Safety and Quality Regulations. (2005) URL http://www.opsi.gov.uk/si/si2005/20050050.htm (accessed on 28 February 2008)