CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 25, Issue 7,2004, Pages 611-611, doi:10.3760/j.issn:0254-6450.2004.07.028
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 25, Issue 7,2004, Pages 553-554, doi:10.3760/j.issn:0254-6450.2004.07.001
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 25, Issue 7,2004, Pages 602-606, doi:10.3760/j.issn:0254-6450.2004.07.015
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 25, Issue 7,2004, Pages 644-644, doi:10.3760/j.issn:0254-6450.2004.07.035
CHINESE JOURNAL OF EPIDEMIOLOGY, Volume 25, Issue 7,2004, Pages 564-567, doi:10.3760/j.issn:0254-6450.2004.07.004