“…Researchers for seven quantitative 35,36,40,43,46,47,53 and the three mixed-methods 39,52,54 studies assessed the WHO SSC across all three phases (ie, sign in, time out, sign out). For the remaining quantitative studies, researchers assessed one 32,34,37,41,42,49,51 or two SSC phases. 44,45,48 During the 17 quantitative and three mixed-methods studies, researchers measured SSC compliance in different ways, including…”