CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 16, Issue 7,2007, Pages 580-582, doi:10.3760/j.issn:1004-4477.2007.07.007
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 16, Issue 7,2007, Pages 640-641, doi:10.3760/j.issn:1004-4477.2007.07.026
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 16, Issue 7,2007, Pages 589-592, doi:10.3760/j.issn:1004-4477.2007.07.010
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 16, Issue 7,2007, Pages 564-567, doi:10.3760/j.issn:1004-4477.2007.07.003
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 16, Issue 7,2007, Pages 611, doi:10.3760/j.issn:1004-4477.2007.07.034