TY JOUR TI BLOOD CELLS MORPHOLOGY OF COWS WITH SEROPOSITIVE AND HAEMO-AMBIGUOUS LEUKOSIS REACTION KW cattle KW leukosis KW blood dabs cytological diagnostics JO Bulletin of KSAU AU Luto, A.A. AU Filipyev, M.M. AU Donkova, N.V. PY 2012 IS PB Krasnoyarsk State Agrarian University