NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 11,2002, Pages 759-761, doi:10.3760/j:issn:0376-2491.2002.11.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 11,2002, Pages 761, doi:10.3760/j:issn:0376-2491.2002.11.023
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 11,2002, Pages 748-751, doi:10.3760/j:issn:0376-2491.2002.11.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 11,2002, Pages 780-783, doi:10.3760/j:issn:0376-2491.2002.11.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 11,2002, Pages 766-770, doi:10.3760/j:issn:0376-2491.2002.11.014