Chinese Journal of Ultrasonography, Volume 21, Issue 8,2012, Pages 669, doi:10.3760/cma.j.issn.1004-4477.2012.08.009
Chinese Journal of Ultrasonography, Volume 21, Issue 8,2012, Pages 652,656, doi:10.3760/cma.j.issn.1004-4477.2012.08.003
Chinese Journal of Ultrasonography, Volume 21, Issue 8,2012, Pages 670-674, doi:10.3760/cma.j.issn.1004-4477.2012.08.010
Chinese Journal of Ultrasonography, Volume 21, Issue 8,2012, Pages 726, doi:10.3760/cma.j.issn.1004-4477.2012.08.030
Chinese Journal of Ultrasonography, Volume 21, Issue 8,2012, Pages 649-652, doi:10.3760/cma.j.issn.1004-4477.2012.08.002