CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 6,2004, Pages 416, doi:10.3760/j.issn:1004-4477.2004.06.026
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 6,2004, Pages 405-407, doi:10.3760/j.issn:1004-4477.2004.06.001
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 6,2004, Pages 442-445, doi:10.3760/j.issn:1004-4477.2004.06.011
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 6,2004, Pages 432, doi:10.3760/j.issn:1004-4477.2004.06.029
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 6,2004, Pages 467-469, doi:10.3760/j.issn:1004-4477.2004.06.018