“…Although researchers, practitioners, and policy makers currently use SR, work continues on how to promote and evaluate the quality of the reviews themselves (Moher et al , ; Moseley et al , ; Valentine et al , ); and, as noted above, one characteristic of quality in SR is the comprehensiveness of the literature searches. Furthermore, although computer searching is not the only component of comprehensive literature searches, it typically serves a core function (Torgerson, ; Petticrew & Roberts, ; Littell et al , ; Lefebvre et al , ; Hammerstrøm et al , ).…”