NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 16,2001, Pages 1008-1009, doi:10.3760/j:issn:0376-2491.2001.16.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 16,2001, Pages 1019-1021, doi:10.3760/j:issn:0376-2491.2001.16.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 16,2001, Pages 1004-1007, doi:10.3760/j:issn:0376-2491.2001.16.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 16,2001, Pages 988-990, doi:10.3760/j:issn:0376-2491.2001.16.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 16,2001, Pages 1014, doi:10.3760/j:issn:0376-2491.2001.16.018