CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 2,2006, Pages 141, doi:10.3760/j.issn:0254-6450.2006.02.023
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 2,2006, Pages 183-184, doi:10.3760/j.issn:0254-6450.2006.02.030
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 2,2006, Pages 181, doi:10.3760/j.issn:0254-6450.2006.02.028
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 2,2006, Pages 117-122, doi:10.3760/j.issn:0254-6450.2006.02.006
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 27, Issue 2,2006, Pages 132-136, doi:10.3760/j.issn:0254-6450.2006.02.009