CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 11,2008, Pages 1110-1113, doi:10.3321/j.issn:0254-6450.2008.11.013
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 11,2008, Pages 1090-1094, doi:10.3321/j.issn:0254-6450.2008.11.009
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 11,2008, Pages 1074-1077, doi:10.3321/j.issn:0254-6450.2008.11.005
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 11,2008, Pages 1061-1063, doi:10.3321/j.issn:0254-6450.2008.11.002
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 11,2008, Pages 1166-1167, doi:10.3321/j.issn:0254-6450.2008.11.030