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2. The 2007 nationwide blood collection and utilization survey report;Whitaker,2008
3. In vitro studies regarding the feasibility of bovine erythrocyte xenotransfusion;Johnstone;Xenotransplantation,2004
4. Will the pig solve the transplantation backlog?;Cooper;Annu Rev Med,2002
5. Xeno – the promise of transplanting animal organs into humans;Cooper,2000