CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 15, Issue 10,2006, Pages 725-728, doi:10.3760/j.issn:1004-4477.2006.10.002
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 15, Issue 10,2006, Pages 773-775, doi:10.3760/j.issn:1004-4477.2006.10.017
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 15, Issue 10,2006, Pages 721-724, doi:10.3760/j.issn:1004-4477.2006.10.001
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 15, Issue 10,2006, Pages 796-797, doi:10.3760/j.issn:1004-4477.2006.10.025
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 15, Issue 10,2006, Pages 758-760, doi:10.3760/j.issn:1004-4477.2006.10.012