CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 17, Issue 3,2008, Pages 262-263, doi:10.3321/j.issn:1004-4477.2008.03.023
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 17, Issue 3,2008, Pages 220, doi:10.3321/j.issn:1004-4477.2008.03.035
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 17, Issue 3,2008, Pages 185-188, doi:10.3321/j.issn:1004-4477.2008.03.001
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 17, Issue 3,2008, Pages 189-192, doi:10.3321/j.issn:1004-4477.2008.03.002