1. Medical standards,2008
2. Eye banking: 1944 to the present;Farge;Surv Ophthalmol,1989
3. United States Code, Title 42, Chapter 7, Subchapter XI, Part A, Section 1320b-8, 2000.
4. United States Code, Title 42, Chapter 6A, Subchapter II, Part H, Section 274e, 2000.
5. United States Code of Federal Regulations, Title 21, Part 1270, Human Tissue Intended for Transplantation, 2008.