CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 3,2008, Pages 220-223, doi:10.3321/j.issn:0254-6450.2008.03.004
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 3,2008, Pages 310-311, doi:10.3321/j.issn:0254-6450.2008.03.027
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 3,2008, Pages 308-309, doi:10.3321/j.issn:0254-6450.2008.03.025
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 3,2008, Pages 235-240, doi:10.3321/j.issn:0254-6450.2008.03.007
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 29, Issue 3,2008, Pages 282-285, doi:10.3321/j.issn:0254-6450.2008.03.017