Figure 2

(a) Telemedical missions in the tele-EMS center of Aachen including supraregional ambulances. Ambulances Aachen = all teleconsultations with ambulances from EMS of Aachen (equal to the sum of cases in Fig. 1 of tEMS-p (secondary) + tEMS-p (rescue) + tEMS-p + EMS-p additional). (b) Number of ambulances and EMS areas connected to the tele-EMS center Aachen over the years. AC = city of Aachen.