CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 10, Issue 11,2001, Pages 682-684, doi:10.3760/j.issn:1004-4477.2001.11.012
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 10, Issue 11,2001, Pages 653-653, doi:10.3760/j.issn:1004-4477.2001.11.023
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 10, Issue 11,2001, Pages 659-659, doi:10.3760/j.issn:1004-4477.2001.11.025
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 10, Issue 11,2001, Pages 667-667, doi:10.3760/j.issn:1004-4477.2001.11.026
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 10, Issue 11,2001, Pages 674-674, doi:10.3760/j.issn:1004-4477.2001.11.028