Livia Puljak1, Andrija Babic2, Dawid Pieper3. 1. Center for Evidence-Based Medicine and Health Care, Catholic University of Croatia, Zagreb, Croatia. Electronic address: livia.puljak@gmail.com. 2. Institute of Emergency Medicine in Split-Dalmatia County, Split, Croatia. 3. Institute for Research in Operative Medicine, Faculty of Health, School of Medicine, Witten/Herdecke University, Cologne, Germany.