CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 12,2006, Pages 1033-1037, doi:10.3760/j.issn:0254-6450.2006.12.008
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 12,2006, Pages 1065-1068, doi:10.3760/j.issn:0254-6450.2006.12.015
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 12,2006, Pages 1029-1032, doi:10.3760/j.issn:0254-6450.2006.12.007
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 12,2006, Pages 1098-1099, doi:10.3760/j.issn:0254-6450.2006.12.028
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 12,2006, Pages 1082-1085, doi:10.3760/j.issn:0254-6450.2006.12.019