DOE:10.3892/ijo_00000176 DOE:10.3892/ijo.2012.1396 DOE:10.3892/ijo.2013.2087 DOE:10.3892/ijo.2013.2128 DOE:10.3892/ijo.2013.2192 DOE:10.3892/ol.2014.1887 DOE:10.3892/ol.2016.5012 DOE:10.3892/or_00000728 DOE:10.3892/or.2012.1938 DOE:10.3892/or.2015.4324