NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 6,2002, Pages 398-399, doi:10.3760/j:issn:0376-2491.2002.06.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 6,2002, Pages 407-409, doi:10.3760/j:issn:0376-2491.2002.06.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 6,2002, Pages 410-412, doi:10.3760/j:issn:0376-2491.2002.06.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 6,2002, Pages 397, doi:10.3760/j:issn:0376-2491.2002.06.024
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 6,2002, Pages 418-421, doi:10.3760/j:issn:0376-2491.2002.06.017