1. Newsletter, ACS/NIH Organ Transplantat Registry. Dec. 1969.
2. Allgöwer, M. and U. F. Gruber: Ethical problems of organ transplantation. Progr. Surg. 8, 1, (1970).
3. Barnard, C. N., A human cardiac transplant: an interim report of a successful operation performed at Groote Schuur Hospital Cape Town. South African Med. J. 41, 1271 (1967).
4. Barnard, C. N., A new approach to the treatment of rejection: experience with third human-to-human heart transplantation performed in Cape Town. Progr. cardiovac. Dis. 12, 201 (1969).
5. Barnard, C. N., Human cardiac transplantation. Amer. J. Cardiocol. 22, 584, (1968).