“…Ten studies [20, 21, 23, 25, 26, 28–30, 32, 41] exclusively included medical doctors (n = 582) and two (n = 98) included only nurses [35, 38]. The remaining 10 studies included participants of different professions (n = 1278): they comprised: medical doctors; nurses; respiratory therapists; paramedics; operating room practitioners; and pharmacists [22, 24, 27, 31, 33, 34, 36, 37, 39, 40]. Participants covered the following specialities: paediatrics; emergency medicine; anaesthesia; otolaryngology; critical care; surgery; and intensive care.…”