NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 6,2003, Pages 504-509, doi:10.3760/j:issn:0376-2491.2003.06.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 6,2003, Pages 518-519, doi:10.3760/j:issn:0376-2491.2003.06.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 6,2003, Pages 522-523, doi:10.3760/j:issn:0376-2491.2003.06.023
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 6,2003, Pages 455-458, doi:10.3760/j:issn:0376-2491.2003.06.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 6,2003, Pages 526-528, doi:10.3760/j:issn:0376-2491.2003.06.025