1. OECD health data 2010 – frequently requested data: organisation for economic co-operation and development,2010
2. National health expenditure projections 2011–2021: CMS Medicare. Available from: http://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/NationalHealthExpendData/Downloads/Proj2011PDF.pdf.
3. Global database on blood safety 2011;WHO,2012
4. The 2009 national blood collection and utilization survey report. The United States Department of Health and Human Services. Available from: http://www.hhs.gov/ash/bloodsafety/2009nbcus.pdf.
5. From blood transfusion to patient blood management: a new paradigm for patient care and cost assessment of blood transfusion practice;Leahy;Intern Med J,2012