NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1270-1273, doi:10.3760/j:issn:0376-2491.2004.15.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1299-1303, doi:10.3760/j:issn:0376-2491.2004.15.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 15,2004, Pages 1283-1287, doi:10.3760/j:issn:0376-2491.2004.15.014
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 1320, doi:10.3760/j:issn:0376-2491.2004.15.023