CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 28, Issue 11,2007, Pages 1096-1100, doi:10.3760/j.issn:0254-6450.2007.11.012
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 28, Issue 11,2007, Pages 1060-1063, doi:10.3760/j.issn:0254-6450.2007.11.003
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 28, Issue 11,2007, Pages 1133-1137, doi:10.3760/j.issn:0254-6450.2007.11.022
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 28, Issue 11,2007, Pages 1055-1059, doi:10.3760/j.issn:0254-6450.2007.11.002
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 28, Issue 11,2007, Pages 1092-1095, doi:10.3760/j.issn:0254-6450.2007.11.011