Chinese Journal of Epidemiology, Volume 35, Issue 8,2014, Pages 953-955, doi:10.3760/cma.j.issn.0254-6450.2014.08.017
Chinese Journal of Epidemiology, Volume 35, Issue 8,2014, Pages 974, doi:10.3760/cma.j.issn.0254-6450.2014.08.022
Chinese Journal of Epidemiology, Volume 35, Issue 8,2014, Pages 965-969, doi:10.3760/cma.j.issn.0254-6450.2014.08.020
Chinese Journal of Epidemiology, Volume 35, Issue 8,2014, Pages 935-938, doi:10.3760/cma.j.issn.0254-6450.2014.08.013
Chinese Journal of Epidemiology, Volume 35, Issue 8,2014, Pages 930-934, doi:10.3760/cma.j.issn.0254-6450.2014.08.012