NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 7,2004, Pages 600-602, doi:10.3760/j:issn:0376-2491.2004.07.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 7,2004, Pages 596-598, doi:10.3760/j:issn:0376-2491.2004.07.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 7,2004, Pages 559-563, doi:10.3760/j:issn:0376-2491.2004.07.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 7,2004, Pages 614-616, doi:10.3760/j:issn:0376-2491.2004.07.024
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 7,2004, Pages 587-591, doi:10.3760/j:issn:0376-2491.2004.07.015