Chinese Journal of Ultrasonography, Volume 21, Issue 4,2012, Pages 348-351, doi:10.3760/cma.j.issn.1004-4477.2012.04.024
Chinese Journal of Ultrasonography, Volume 21, Issue 4,2012, Pages 312-315, doi:10.3760/cma.j.issn.1004-4477.2012.04.012
Chinese Journal of Ultrasonography, Volume 21, Issue 4,2012, Pages 311,315, doi:10.3760/cma.j.issn.1004-4477.2012.04.011
Chinese Journal of Ultrasonography, Volume 21, Issue 4,2012, Pages 360-361, doi:10.3760/cma.j.issn.1004-4477.2012.04.029
Chinese Journal of Ultrasonography, Volume 21, Issue 4,2012, Pages 277-280, doi:10.3760/cma.j.issn.1004-4477.2012.04.001