Fig. 6. Relationship between mean values of right ventricle preload-adjusted dP/dt max(PAdP/dt max) and the right/left systolic vascular ratio (R/L) of the three different concentrations of each inhalation agent illustrating the combined effect of monocrotaline and the anesthetic drugs. Lines represent linear correlations of pooled means during control (triangles, solid line ) and following monocrotaline pretreatment (circles, dashed line ). Symbols are the same as in figure 3.