CHINESE JOURNAL OF RADIOLOGY, Volume 35, Issue 3,2001, Pages 238-239, doi:10.3760/j.issn:1005-1201.2001.03.030
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CHINESE JOURNAL OF RADIOLOGY, Volume 35, Issue 3,2001, Pages 221-223, doi:10.3760/j.issn:1005-1201.2001.03.018
CHINESE JOURNAL OF RADIOLOGY, Volume 35, Issue 3,2001, Pages 202-204, doi:10.3760/j.issn:1005-1201.2001.03.012