NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 24,2003, Pages 2152-2157, doi:10.3760/j:issn:0376-2491.2003.24.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 24,2003, Pages 2176-2178, doi:10.3760/j:issn:0376-2491.2003.24.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 24,2003, Pages 2188-2190, doi:10.3760/j:issn:0376-2491.2003.24.024
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 24,2003, Pages 2132-2136, doi:10.3760/j:issn:0376-2491.2003.24.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 24,2003, Pages 2172, doi:10.3760/j:issn:0376-2491.2003.24.025