1. Pierce, A.E., Vet. Rev. Annot. 5:17, 1959.
2. South, M.A., Cooper, M.D., Wollheim, F.A. and Good, R.A. Amer. J. Med. 44:168, 1968.
3. South, M.A., Cooper, M.D., Hong, R., Wollheim, F.A. and Good, R.A. in Birth Defects Original Article Series, Vol. IV, No. 1 (Immunologic Deficiency Diseases in Man) p. 283, D. Bergsma and R.A. Good, eds., University of Florida Press, Gainesville, Florida, 1968.
4. Heremans, J.F. and Crabbe, P.A. in Birth Defects Original Article Series, Vol. IV, No. 1, (Immunologic Deficiency Diseases in Man) p. 298, University of Florida Press, Gainesville, Florida, 1968.
5. Hobbs, J.R. , Lancet, 1:110, 1968.