CHINESE JOURNAL OF RADIOLOGICAL MEDICINE AND PROTECTION, Volume 23, Issue 3,2003, Pages 188-190, doi:10.3760/cma.j.issn.0254-5098.2003.03.019
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CHINESE JOURNAL OF RADIOLOGICAL MEDICINE AND PROTECTION, Volume 23, Issue 3,2003, Pages 183-184, doi:10.3760/cma.j.issn.0254-5098.2003.03.016
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CHINESE JOURNAL OF RADIOLOGICAL MEDICINE AND PROTECTION, Volume 23, Issue 3,2003, Pages 180-181, doi:10.3760/cma.j.issn.0254-5098.2003.03.014