Regression analysis of the relationship between the terminal number of criteria met by SA session 25 and the Addiction Severity Score measured at (A) SA session 9, (B) SA session 13 (R2s<0.10), (C) SA session 17 (R2=0.32, p<0.001), and (D) SA session 25 (R2=0.75, p<0.0001). ***p<0.001, ** p<0.01, *p<0.05 compared to 0 criteria rats.