Key Words Thomsen''s antigen - leukocytes - leukemia - hemagglutination test
Laboratory of Immunology, D. I. Ivanovskii Institute of Virology, Academy of Medical Sciences of the USSR, Moscow. (Translated from Byulleten'' Éksperimental''noi Biologii i Meditsiny, Vol. 103, No. 3, pp. 334–336, March, 1987.