CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 19, Issue 1,2010, Pages 56-60, doi:10.3760/cma.j.issn.1004-4477.2010.01.018
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 19, Issue 1,2010, Pages 40-42, doi:10.3760/cma.j.issn.1004-4477.2010.01.012
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 19, Issue 1,2010, Pages 51-55, doi:10.3760/cma.j.issn.1004-4477.2010.01.017
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 19, Issue 1,2010, Pages 32-35, doi:10.3760/cma.j.issn.1004-4477.2010.01.010