CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 11,2004, Pages 878-879, doi:10.3760/j.issn:1004-4477.2004.11.025
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 11,2004, Pages 814, doi:10.3760/j.issn:1004-4477.2004.11.027
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 11,2004, Pages 841-843, doi:10.3760/j.issn:1004-4477.2004.11.012
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 11,2004, Pages 864, doi:10.3760/j.issn:1004-4477.2004.11.035
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 13, Issue 11,2004, Pages 831-833, doi:10.3760/j.issn:1004-4477.2004.11.009