Figure 2From: Temporal differences in gamma-hydroxybutyrate overdoses involving injecting drug users versus recreational drug users in Helsinki: a retrospective studyDistribution of overdoses according to the time of day. Patients with serious GHB and GBL overdose treated by Helsinki Emergency Medical Services in 2006-2007. EMS: Emergency Medical Service, GHB: gammahydroxybutyrate, GBL: gammabutyrolactone.Back to article page