NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2001, Pages 444-446, doi:10.3760/j:issn:0376-2491.2001.07.025
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 7,2001, Pages 432-434, doi:10.3760/j:issn:0376-2491.2001.07.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 81, Issue 7,2001, Pages 396-398, doi:10.3760/j:issn:0376-2491.2001.07.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2001, Pages 392, doi:10.3760/j:issn:0376-2491.2001.07.023
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2001, Pages 443, doi:10.3760/j:issn:0376-2491.2001.07.020