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CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 14, Issue 4,2005, Pages 封三, doi:10.3760/j.issn:1004-4477.2005.04.036
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 14, Issue 4,2005, Pages 307-309, doi:10.3760/j.issn:1004-4477.2005.04.019
CHINESE JOURNAL OF ULTRASONOGRAPHY, Volume 14, Issue 4,2005, Pages 285-287, doi:10.3760/j.issn:1004-4477.2005.04.012