NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 24,2002, Pages 1728-1729, doi:10.3760/j:issn:0376-2491.2002.24.036
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 24,2002, Pages 1675-1678, doi:10.3760/j:issn:0376-2491.2002.24.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 24,2002, Pages 1722-1724, doi:10.3760/j:issn:0376-2491.2002.24.033
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 24,2002, Pages 1712-1713, doi:10.3760/j:issn:0376-2491.2002.24.026
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 24,2002, Pages 1726-1728, doi:10.3760/j:issn:0376-2491.2002.24.035