Chinese Journal of Epidemiology, Volume 35, Issue 4,2014, Pages 449-452, doi:10.3760/cma.j.issn.0254-6450.2014.04.024
Chinese Journal of Epidemiology, Volume 35, Issue 4,2014, Pages 365-369, doi:10.3760/cma.j.issn.0254-6450.2014.04.005
Chinese Journal of Epidemiology, Volume 35, Issue 4,2014, Pages 406-410, doi:10.3760/cma.j.issn.0254-6450.2014.04.014
Chinese Journal of Epidemiology, Volume 35, Issue 4,2014, Pages 473-474, doi:10.3760/cma.j.issn.0254-6450.2014.04.030
Chinese Journal of Epidemiology, Volume 35, Issue 4,2014, Pages 349-353, doi:10.3760/cma.j.issn.0254-6450.2014.04.002