1 Department of Emergency Medicine, Campus Virchow, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany.
2 Division of Emergency Medicine, Stellenbosch University, Cape Town 7925, South Africa.
3 Department of Computer Science and Engineering, Frederick University, 3080 Lemesos, Cyprus.
4 Department of Emergency Medicine, Klinikum Frankfurt Höchst GmbH, 65929 Frankfurt am Main, Germany.
5 Department of Diagnostic Radiology, Inselspital Bern, University of Bern, Diagnostische, Interventionelle und Pädiatrische Radiologie, 3010 Bern, Switzerland.
6 Department of Emergency Medicine, Inselspital Bern, University of Bern, 3010 Bern, Switzerland.