NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 8,2001, Pages 497-498, doi:10.3760/j:issn:0376-2491.2001.08.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 8,2001, Pages 451, doi:10.3760/j:issn:0376-2491.2001.08.027
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 8,2001, Pages 500-501, doi:10.3760/j:issn:0376-2491.2001.08.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 8,2001, Pages 480-484, doi:10.3760/j:issn:0376-2491.2001.08.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 8,2001, Pages 494-495, doi:10.3760/j:issn:0376-2491.2001.08.015