CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 12, Issue 12,2003, Pages 761-762, doi:10.3760/j.issn:1004-4477.2003.12.021
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 12, Issue 12,2003, Pages 756-757, doi:10.3760/j.issn:1004-4477.2003.12.018
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 12, Issue 12,2003, Pages 729, doi:10.3760/j.issn:1004-4477.2003.12.028
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 12, Issue 12,2003, Pages 739-741, doi:10.3760/j.issn:1004-4477.2003.12.010
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 12, Issue 12,2003, Pages 745-747, doi:10.3760/j.issn:1004-4477.2003.12.012