NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 17,2003, Pages 1521-1524, doi:10.3760/j:issn:0376-2491.2003.17.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 17,2003, Pages 1543, doi:10.3760/j:issn:0376-2491.2003.17.033
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 17,2003, Pages 1542-1543, doi:10.3760/j:issn:0376-2491.2003.17.025
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 17,2003, Pages 1546-1548, doi:10.3760/j:issn:0376-2491.2003.17.027
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 83, Issue 17,2003, Pages 1484-1489, doi:10.3760/j:issn:0376-2491.2003.17.006