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Fig. 7. Secreted fluid daunorubicin concentration as a function of bathing saline
daunorubicin concentration for cricket tubules set up in Ramsay assays. Each
point shows the mean ± S.E.M. for
N=58 tubules. The solid line represents the fit to the
MichaelisMenten equation by non-linear regression analysis. The inset
shows the ratio of the concentration of daunorubicin in the secreted fluid to
that in the bathing medium (S/M) as a function of bathing medium daunorubicin
concentration.