CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 11,2005, Pages 897-900, doi:10.3760/j.issn:0254-6450.2005.11.016
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 11,2005, Pages 878-881, doi:10.3760/j.issn:0254-6450.2005.11.012
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 11,2005, Pages 923, doi:10.3760/j.issn:0254-6450.2005.11.029
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 11,2005, Pages 892-896, doi:10.3760/j.issn:0254-6450.2005.11.015
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 11,2005, Pages 864-867, doi:10.3760/j.issn:0254-6450.2005.11.008