Fig. 1From: Plasma levels of a methadone constant rate infusion and their corresponding effects on thermal and mechanical nociceptive thresholds in dogsmean ± SD of mechanical threshold (MT) in N over time (n = 6); BL: baseline, dotted line: time of drug application; dotted arrow: stop of CRI; * significant difference (p < 0.05) to BL in group M; # significant difference (p < 0.05) to BL in group P; ° significant difference (p < 0.05) between groupsBack to article page