In the March 2006 issue of the Journal, in the 2005 Journal Symposium Plasticity and Postop Pain article by Buvanendran et al ., entitled “Upregulation of Prostraglandin E2and Interleukins in the Central Nervous System and Peripheral Tissue during and after Surgery in Humans” (Anesthesiology 2006;104:403–10), parts A and B of Figure 4were reversed. The correct figure is printed below. The publisher regrets the error.

Fig. 4. Graph showing the time course of prostaglandin E2(PGE2) concentration in three groups of patients: placebo (control), 1-day preoperative cyclooxygenase-2 (COX-2) inhibitor, 5-day preoperative COX-2 inhibitor. (  A ) Cerebrospinal fluid (CSF) concentrations (relative to 0 h value). Baseline values did not differ between groups. (  B ) Hip drain concentrations. Asterisks indicate significant difference (  P < 0.05) from placebo group. Note: PGE2values at 1 and 3 h for the placebo group and at 1, 3, and 9 h for the two drug groups are below the detection limit. 
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Fig. 4. Graph showing the time course of prostaglandin E2(PGE2) concentration in three groups of patients: placebo (control), 1-day preoperative cyclooxygenase-2 (COX-2) inhibitor, 5-day preoperative COX-2 inhibitor. (  A ) Cerebrospinal fluid (CSF) concentrations (relative to 0 h value). Baseline values did not differ between groups. (  B ) Hip drain concentrations. Asterisks indicate significant difference (  P < 0.05) from placebo group. Note: PGE2values at 1 and 3 h for the placebo group and at 1, 3, and 9 h for the two drug groups are below the detection limit. 

Fig. 4. Graph showing the time course of prostaglandin E2(PGE2) concentration in three groups of patients: placebo (control), 1-day preoperative cyclooxygenase-2 (COX-2) inhibitor, 5-day preoperative COX-2 inhibitor. (  A ) Cerebrospinal fluid (CSF) concentrations (relative to 0 h value). Baseline values did not differ between groups. (  B ) Hip drain concentrations. Asterisks indicate significant difference (  P < 0.05) from placebo group. Note: PGE2values at 1 and 3 h for the placebo group and at 1, 3, and 9 h for the two drug groups are below the detection limit. 
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Fig. 4. Graph showing the time course of prostaglandin E2(PGE2) concentration in three groups of patients: placebo (control), 1-day preoperative cyclooxygenase-2 (COX-2) inhibitor, 5-day preoperative COX-2 inhibitor. (  A ) Cerebrospinal fluid (CSF) concentrations (relative to 0 h value). Baseline values did not differ between groups. (  B ) Hip drain concentrations. Asterisks indicate significant difference (  P < 0.05) from placebo group. Note: PGE2values at 1 and 3 h for the placebo group and at 1, 3, and 9 h for the two drug groups are below the detection limit. 

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