1. Brightbill FS (1993) Corneal surgery-theory, technique and tissue, 2nd edn. Mosby, St Louis
2. Canadian Institute for Health Information (2003) Demand for human allograft tissue in Canada final report. CIHI
3. Feindel CM, David TE, Bos J, Day PA, Cardella CJ (1991) Recycled heart valves from transplant patients. J Heart Lung Transplant 10:614–616
4. Greenwald SA, Boden SD, Goldberg VM, Khan Y, Laurencin CT, Rosier RN (2002) Bone-graft substitutes: facts, fictions & applications. In: American academy of orthopaedic surgeons 69th annual meeting, Dallas, Texas
5. Hackett K (2001) Tissue donation, tissue bank 2001 report. Halifax