Fig. 2From: Helicopter emergency medical service for time critical interfacility transfers of patients with cardiovascular emergenciesMission distance and duration by diagnosis. Duration of all conducted HEMS missions is plotted against the travel distance for the same mission by ambulance (road distance). The box plots summarise the total mission duration and road distance by diagnosis, respectively. Complete case analysis, data was available in 639 of 645 patients (99.1%)Back to article page