NATIONAL MEDICAL JOURNAL OF CHINA, Volume 80, Issue 11,2000, Pages 864, doi:10.3760/j:issn:0376-2491.2000.11.043
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 80, Issue 11,2000, Pages 805, doi:10.3760/j:issn:0376-2491.2000.11.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 80, Issue 11,2000, Pages 878, doi:10.3760/j:issn:0376-2491.2000.11.026
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 80, Issue 11,2000, Pages 880, doi:10.3760/j:issn:0376-2491.2000.11.028
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 80, Issue 11,2000, Pages 807, doi:10.3760/j:issn:0376-2491.2000.11.002