NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 16,2004, Pages 1340-1343, doi:10.3760/j:issn:0376-2491.2004.16.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 16,2004, Pages 1344-1347, doi:10.3760/j:issn:0376-2491.2004.16.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 16,2004, Pages 1399-1402, doi:10.3760/j:issn:0376-2491.2004.16.028
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 16,2004, Pages 1381-1385, doi:10.3760/j:issn:0376-2491.2004.16.023
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 16,2004, Pages 1379-1380, doi:10.3760/j:issn:0376-2491.2004.16.022