NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 23,2001, Pages 1462-1463, doi:10.3760/j:issn:0376-2491.2001.23.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 23,2001, Pages 1469, doi:10.3760/j:issn:0376-2491.2001.23.024
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 23,2001, Pages 1420-1423, doi:10.3760/j:issn:0376-2491.2001.23.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 23,2001, Pages 1411-1412, doi:10.3760/j:issn:0376-2491.2001.23.002
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 23,2001, Pages 1470-1472, doi:10.3760/j:issn:0376-2491.2001.23.025