“…An analysis of the references of the 16 selected articles was performed and 5 studies were search in reference list, totaling at the end of the selection process 21 publications included in the systematic review (KoclaKimble and Batz, 1994;Wislande, 1994;Lee et al, 1998;Reutzel et al, 1999;Chambers et al, 2000;James et al, 2001;Ramam-Wilms, 2001;Bertolo et al, 2003;Lam, 2005;Kassam, 2006a, b;Ross et al, 2007;Culbertson, 2008;Kassam et al, 2008;Zolezzi and Blake, 2008;Benedict, 2010;Chiang et al, 2010;Strohfeldt and Grant, 2010;Cone et al, 2013;Limberger, 2013;Galal et al, 2014). The concordance between the two review authors was considered excellent (k = 0.9987, k = 0.9851, and k = 0.9893, respectively) in 3 steps of the selection process of articles.…”