... strategy of cancer drug therapy seems to be necessary, i.e the management may include, in cases of the detection of broad drug resistance, the omission of aggressive chemotherapy This would help to ... early as the 1950s, research teams started to develop laboratory tests in order to predict tumor reaction to cytostatic drugs [5] They used fresh cancer tissue and examined the effect of the drugs ... as highly predictable, which is not the case with drug sensitivity Results of sensitive drugs obtained by the net effect of drug action on cancer cells are not very reliably, since many steps...