1. Abbrecht, P. H., and J. A. Greene JR.: J. Lab. clin. Med. 66, 849 (1965).
2. Abbrecht, P. H., and J. A. Greene JR.: Ann intern. Med. 65, 908–921 (1966).
3. Adamson, J. W., R. Alexanian, C. Martinez, and C. A. Finch: Blood 28, 354–364 (1966).
4. Adamson, J. W., and C. A. Finch: Trans. Ass. Amer. Phycns. 79, 419–425 (1966).
5. Alexanian, R.: Blood 28, 344–353 (1966).