“…The review process identified a total of 20 studies (al-Naqeeb et al, 1992;Berjis et al, 2007a;Dallera et al, 1993;Debets and Munting, 1992;Ghosh et al, 2003;Henriksson et al, 1998;Iro et ACCEPTED MANUSCRIPT al., 2013;Laccourreye et al, 1994;Laskawi et al, 1996;Leverstein et al, 1997;Maimaris and Ball, 1986;Marti et al, 2000;Maynard, 1988;McGurk et al, 1996;Natvig and Soberg, 1994;Satko et al, 2000;Wennmo et al, 1988;Witt, 2002;Woods, 1985). These are reported in Figure 1.…”