NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 22,2002, Pages 1553-1556, doi:10.3760/j:issn:0376-2491.2002.22.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 22,2002, Pages 1550-1552, doi:10.3760/j:issn:0376-2491.2002.22.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 22,2002, Pages 1525-1528, doi:10.3760/j:issn:0376-2491.2002.22.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 22,2002, Pages 1546-1549, doi:10.3760/j:issn:0376-2491.2002.22.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 22,2002, Pages 1583-1584, doi:10.3760/j:issn:0376-2491.2002.22.025