1. Blood safety in the developing world and WHO initiatives;Dhingra;Vox Sang,2002
2. World Health Organization Developing a National Policy and Guidelines on the Clinical Use of Blood. Recommendations World Health Organization 2004 http://www.who.int/bloodsafety/clinical_use/en/
3. Adequacy of physician documentation of red blood cell transfusion and correlation with assessment of transfusion appropriateness;Friedman;Arch Pathol Lab Med,2006
4. Principles of blood transfusion service audit;Dosunmu;Afr J Med Sci,2005
5. National Institute for Clinical Excellence Principles for Best practice in Clinical Audit Radcliff Medical Press Ltd 2002 http://www.nice.org.uk/