“…By contrast, in the majority of murine models, superior results in the experimental therapy of leukemia were obtained if the treatment began on day 1 after transplantation of leukemic cells. 17,18 In experiments where the treatment began several days after a leukemia transplantation, efficiency of therapy significantly decreased. 19 However, a quantitative assessment of antitumor therapy efficiency in an animal model requires a synchronous leukemia growth which provides an opportunity for a highly accurate evaluation of a drug effect.…”