NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 1,2004, Pages 31-33, doi:10.3760/j:issn:0376-2491.2004.01.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 1,2004, Pages 22-26, doi:10.3760/j:issn:0376-2491.2004.01.007
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 1,2004, Pages 14-17, doi:10.3760/j:issn:0376-2491.2004.01.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 1,2004, Pages 29-31, doi:10.3760/j:issn:0376-2491.2004.01.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 1,2004, Pages 79-82, doi:10.3760/j:issn:0376-2491.2004.01.026