Figure 1From: Differential effects of in vitro norepinephrine on platelets isolated from severely traumatic brain injured patientsChanges in P-selectin expression in isolated platelets stimulated in vitro with norepinephrine or TRAP. +P < 0.001 vs low-dose norepinephrine; *P < 0.001 vs controls; #P < 0.001 vs first week.Back to article page