Dr. Marcello Candelli has been an Adjunct Professor of Emergency Medicine at the Graduate School of Emergency Medicine of the Catholic University of the Sacred Heart of Rome, Faculty of Medicine and Surgery since 2016 for years of courses I, II, III, IV, V. He received his medical degree from the Catholic University of the Sacred Heart. He specialized in emergency medicine and gastroenterology. In addition, he is a medical coordinator and is responsible for the UOS management of patients waiting to be admitted to the PS of the Agostino Gemelli Polyclinic Foundation, IRCCS, in Rome. He directs research projects on mild head trauma, gastrointestinal bleeding, pulmonary embolism, and PS infections.