CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 10,2005, Pages 735-739, doi:10.3760/j.issn:0254-6450.2005.10.002
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 10,2005, Pages 767-771, doi:10.3760/j.issn:0254-6450.2005.10.009
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 10,2005, Pages 794-799, doi:10.3760/j.issn:0254-6450.2005.10.015
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 10,2005, Pages 761-766, doi:10.3760/j.issn:0254-6450.2005.10.008
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 26, Issue 10,2005, Pages 745, doi:10.3760/j.issn:0254-6450.2005.10.004