NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 18,2002, Pages 1227-1228, doi:10.3760/j:issn:0376-2491.2002.18.002
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 18,2002, Pages 1288-1291, doi:10.3760/j:issn:0376-2491.2002.18.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 18,2002, Pages 1226-1226, doi:10.3760/j:issn:0376-2491.2002.18.022
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 18,2002, Pages 1283-1284, doi:10.3760/j:issn:0376-2491.2002.18.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 82, Issue 18,2002, Pages 1237-1241, doi:10.3760/j:issn:0376-2491.2002.18.006