NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 10,2003, Pages 872-876, doi:10.3760/j:issn:0376-2491.2003.10.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 10,2003, Pages 883-884, doi:10.3760/j:issn:0376-2491.2003.10.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 10,2003, Pages 868-871, doi:10.3760/j:issn:0376-2491.2003.10.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 10,2003, Pages 841-843, doi:10.3760/j:issn:0376-2491.2003.10.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 10,2003, Pages 827-831, doi:10.3760/j:issn:0376-2491.2003.10.006