NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 18,2001, Pages 1124-1127, doi:10.3760/j:issn:0376-2491.2001.18.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 18,2001, Pages 1121-1123, doi:10.3760/j:issn:0376-2491.2001.18.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 18,2001, Pages 1140, doi:10.3760/j:issn:0376-2491.2001.18.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 18,2001, Pages 1130-1131, doi:10.3760/j:issn:0376-2491.2001.18.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 18,2001, Pages 1092-1094, doi:10.3760/j:issn:0376-2491.2001.18.003