Chinese Journal of Ultrasonography, Volume 21, Issue 2,2012, Pages 93-98, doi:10.3760/cma.j.issn.1004-4477.2012.02.001
Chinese Journal of Ultrasonography, Volume 21, Issue 2,2012, Pages 182-183, doi:10.3760/cma.j.issn.1004-4477.2012.02.030
Chinese Journal of Ultrasonography, Volume 21, Issue 2,2012, Pages 133-137, doi:10.3760/cma.j.issn.1004-4477.2012.02.013
Chinese Journal of Ultrasonography, Volume 21, Issue 2,2012, Pages 153-155, doi:10.3760/cma.j.issn.1004-4477.2012.02.019
Chinese Journal of Ultrasonography, Volume 21, Issue 2,2012, Pages 138-141, doi:10.3760/cma.j.issn.1004-4477.2012.02.015