CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 24, Issue 11,2003, Pages 1035, doi:10.3760/j.issn:0254-6450.2003.11.034
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 24, Issue 11,2003, Pages 1063, doi:10.3760/j.issn:0254-6450.2003.11.037
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 24, Issue 11,2003, Pages 1013-1015, doi:10.3760/j.issn:0254-6450.2003.11.014
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 24, Issue 11,2003, Pages 998, doi:10.3760/j.issn:0254-6450.2003.11.031
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 24, Issue 11,2003, Pages 1049-1051, doi:10.3760/j.issn:0254-6450.2003.11.023