Figure 4

Culture plate layout. Wells labelled: M contain medium alone, C0 contain cell culture with salt water added at time $t_1^{\prime }$, C1,…,C18 contain cell culture with drug dilutions added at time $t_1^{\prime }$, and B contain only medium with salt water added at time $t_1^{\prime }$. The drug dilutions are given as 2-fold dilutions from C 18 = 10 μg/ml, C 17 = 5 μg/ml down to C 1 = 763 · 10^-7μg/ml.