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Table 4 Colorado University pain scale scores by treatment group - median (upper-lower value)

From: Evaluation of the effects of methadone and tramadol on postoperative analgesia and serum interleukin-6 in dogs undergoing orthopaedic surgery

Group TBL T1 T4 T6 T24
TRA 0 (0-0) 0 (0-0) 1.5 (0-3) 1 (0-2) 0 (0-1)
MET 0.5 0 (0-0) 0 (0-0) 1 (1-3) 0 (0-0) 0 (0-1)
MET 0.7 0 (0-0) 0 (0-0) 0.5 (0-2) 0 (0-1) 0 (0-0)