Fig. 1. The percentage of patients in each group with continuing pain relief as a function of time. Group 0 (no sufentanil) is significantly different from groups 2.5–10 (P < 0.001). Groups 2.5–10 are not different among each other.
Fig. 1. The percentage of patients in each group with continuing pain relief as a function of time. Group 0 (no sufentanil) is significantly different from groups 2.5–10 (P < 0.001). Groups 2.5–10 are not different among each other.
