Kadoglou et al., 2007 [26] Oberbach et al., 2008 [21] Jorge et al., 2011 [22] Swift et al., 2012 [28] Kadoglou et al., 2012 [23] Kadoglou et al., 2013 [29] Moghadasi et al., 2013 [30] | Brooks et al., 2007 [20] Jorge et al., 2011 [22] Swift et al., 2012 [28] Kadoglou et al., 2012 [27] Kadoglou et al., 2013 [29] Mavros et al., 2014 [25] | Jorge et al., 2011 [22] Sukala et al., 2012 [24] Swift et al., 2012 [28] Kadoglou et al., 2013 [29] |