NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 20,2002, Pages 1381-1384, doi:10.3760/j:issn:0376-2491.2002.20.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 20,2002, Pages 1391-1395, doi:10.3760/j:issn:0376-2491.2002.20.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 20,2002, Pages 1369-1370, doi:10.3760/j:issn:0376-2491.2002.20.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 20,2002, Pages 1439-1440, doi:10.3760/j:issn:0376-2491.2002.20.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 20,2002, Pages 1434-1435, doi:10.3760/j:issn:0376-2491.2002.20.018