NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 9,2004, Pages 781-783, doi:10.3760/j:issn:0376-2491.2004.09.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 9,2004, Pages 730-731, doi:10.3760/j:issn:0376-2491.2004.09.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 9,2004, Pages 718-724, doi:10.3760/j:issn:0376-2491.2004.09.006
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 9,2004, Pages 760-765, doi:10.3760/j:issn:0376-2491.2004.09.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 9,2004, Pages 787-789, doi:10.3760/j:issn:0376-2491.2004.09.023