chang et al. 2004, chen et al. 2004, cheng et al. 2014, cheng et al. 2009, chang et al. 2003, cheng et al. 2015, wang et al. 2004, chung et al. 2004, cheng et al. 2017, cheng et al. 2016, cheung et al. 2012, chen et al. 2005, chen et al. 2007, chen et al. 2006, chen et al. 2010, chang et al. 2009, chen et al 2009, chang et. al 1998
cheng et al. 2004. There are any references about cheng et al. 2004 in here. you can look below.
chang et al. 2004
chen et al. 2004
cheng et al. 2014
cheng et al. 2009
chang et al. 2003
cheng et al. 2015
wang et al. 2004
chung et al. 2004
cheng et al. 2017
cheng et al. 2016
cheung et al. 2012
chen et al. 2005
chen et al. 2007
chen et al. 2006
chen et al. 2010
chang et al. 2009
chen et al 2009
chang et. al 1998
chang et al. 2004, chen et al. 2004, cheng et al. 2014, cheng et al. 2009, chang et al. 2003, cheng et al. 2015, wang et al. 2004, chung et al. 2004, cheng et al. 2017, cheng et al. 2016, cheung et al. 2012, chen et al. 2005, chen et al. 2007, chen et al. 2006, chen et al. 2010, chang et al. 2009, chen et al 2009, chang et. al 1998
