CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 11, Issue 10,2002, Pages 581-584, doi:10.3760/j.issn:1004-4477.2002.10.001
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 11, Issue 10,2002, Pages 639-640, doi:10.3760/j.issn:1004-4477.2002.10.020
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 11, Issue 10,2002, Pages 585-588, doi:10.3760/j.issn:1004-4477.2002.10.002
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 11, Issue 10,2002, Pages 600-603, doi:10.3760/j.issn:1004-4477.2002.10.006
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 11, Issue 10,2002, Pages 613-615, doi:10.3760/j.issn:1004-4477.2002.10.010