NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 13,2003, Pages 1130-1133, doi:10.3760/j:issn:0376-2491.2003.13.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 13,2003, Pages 1194-1195, doi:10.3760/j:issn:0376-2491.2003.13.024
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 13,2003, Pages 1176-1179, doi:10.3760/j:issn:0376-2491.2003.13.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 13,2003, Pages 1138-1141, doi:10.3760/j:issn:0376-2491.2003.13.007
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 13,2003, Pages 1122-1125, doi:10.3760/j:issn:0376-2491.2003.13.003