1. Abelev, G.I., Adv. Cancer Res., 14 (1971) 295.
2. Andersson, N.G. and Coggin, J.H., Jr., Proc. First Conf. Workshop Embryonic and Fetal Antigens in Cancer, Conf.-710527, May 24–26 (1971) 7.
3. Andren-Sandberg, A. and Isacson, S., VI Ann. Meeting Scand. Soc. Immunol., May 14–16 (1975).
4. Björklund, B., Conceptual Advances in Immunology and Oncology (Ed. R.W. Cumley, D.M. Aldridge, J. Haroz and J. McKay) (1963)503.
5. Björklund, B., Int. Arch. Allergy, 36 (1971) 191.