“…The 16 studies covered seven countries: the USA (seven studies [32–34, 36, 38, 42, 44];), the UK (three studies [41, 45, 47];), Germany (three studies [37, 40, 46];), Canada (one study [39];), Norway (one study [43];) and a multicentre study [35] from which we selected the data referring to the developed countries in Europe, namely the Czech Republic, Germany, Hungary, and Slovenia. Health care providers were primary care [47], emergency department in four studies [33, 34, 39, 42], and hospital in three studies [36, 41, 44]. Two studies covered more than one sector of the health care system [35, 37]; and five studies applied a population-based approach [32, 38, 40, 45, 46].…”