Chinese Journal of Ultrasonography, Volume 20, Issue 9,2011, Pages 764-767, doi:10.3760/cma.j.issn.1004-4477.2011.09.011
Chinese Journal of Ultrasonography, Volume 20, Issue 9,2011, Pages 794, doi:10.3760/cma.j.issn.1004-4477.2011.09.022
Chinese Journal of Ultrasonography, Volume 20, Issue 9,2011, Pages 771, doi:10.3760/cma.j.issn.1004-4477.2011.09.013
Chinese Journal of Ultrasonography, Volume 20, Issue 9,2011, Pages 825-826, doi:10.3760/cma.j.issn.1004-4477.2011.09.035
Chinese Journal of Ultrasonography, Volume 20, Issue 9,2011, Pages 737-741, doi:10.3760/cma.j.issn.1004-4477.2011.09.001