CHINESE JOURNAL OF RADIOLOGY, Volume 32, Issue 9,1998, Pages 641, doi:10.3760/j.issn:1005-1201.1998.09.016
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CHINESE JOURNAL OF RADIOLOGY, Volume 32, Issue 9,1998, Pages 637, doi:10.3760/j.issn:1005-1201.1998.09.014
CHINESE JOURNAL OF RADIOLOGY, Volume 32, Issue 9,1998, Pages 638, doi:10.3760/j.issn:1005-1201.1998.09.032