NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 12,2002, Pages 852-853, doi:10.3760/j:issn:0376-2491.2002.12.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 12,2002, Pages 828-829, doi:10.3760/j:issn:0376-2491.2002.12.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 12,2002, Pages 854-855, doi:10.3760/j:issn:0376-2491.2002.12.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 12,2002, Pages 793-795, doi:10.3760/j:issn:0376-2491.2002.12.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 12,2002, Pages 830-831, doi:10.3760/j:issn:0376-2491.2002.12.012