ACADEMIC JOURNAL OF SECOND MILITARY MEDICAL UNIVERSITY, Volume 20, Issue 11,1999, Pages 854-856, doi:10.3321/j.issn:0258-879X.1999.11.010
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ACADEMIC JOURNAL OF SECOND MILITARY MEDICAL UNIVERSITY, Volume 20, Issue 11,1999, Pages 886-888, doi:10.3321/j.issn:0258-879X.1999.11.021
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ACADEMIC JOURNAL OF SECOND MILITARY MEDICAL UNIVERSITY, Volume 20, Issue 11,1999, Pages 869-871, doi:10.3321/j.issn:0258-879X.1999.11.015