CDC:10.3122/jabfm.2009.03.080218 CDC:10.3122/jabfm.2010.06.100098 CDC:10.3122/jabfm.2011.04.110015 CDC:10.3122/jabfm.2012.04.110259 CDC:10.3122/jabfm.2013.04.120267 CDC:10.3122/jabfm.2013.04.120301 CDC:10.3122/jabfm.2014.02.130104 CDC:10.3122/jabfm.2014.03.130290 CDC:10.3122/jabfm.2015.04.150062 CDC:10.3122/jabfm.2015.06.150161