NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1265-1269, doi:10.3760/j:issn:0376-2491.2004.15.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1303, doi:10.3760/j:issn:0376-2491.2004.15.024
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1260-1264, doi:10.3760/j:issn:0376-2491.2004.15.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1315-1317, doi:10.3760/j:issn:0376-2491.2004.15.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1270-1273, doi:10.3760/j:issn:0376-2491.2004.15.010