NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 1,2003, Pages 31-36, doi:10.3760/j:issn:0376-2491.2003.01.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 1,2003, Pages 62, doi:10.3760/j:issn:0376-2491.2003.01.028
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 1,2003, Pages 66-68, doi:10.3760/j:issn:0376-2491.2003.01.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 1,2003, Pages 46-50, doi:10.3760/j:issn:0376-2491.2003.01.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 1,2003, Pages 37-41, doi:10.3760/j:issn:0376-2491.2003.01.011