Chinese Journal of Epidemiology, Volume 34, Issue 11,2013, Pages 1055-1058, doi:10.3760/cma.j.issn.0254-6450.2013.011.002
Chinese Journal of Epidemiology, Volume 34, Issue 11,2013, Pages 1111-1114, doi:10.3760/cma.j.issn.0254-6450.2013.011.015
Chinese Journal of Epidemiology, Volume 34, Issue 11,2013, Pages 1155, doi:10.3760/cma.j.issn.0254-6450.2013.011.026
Chinese Journal of Epidemiology, Volume 34, Issue 11,2013, Pages 1125-1127, doi:10.3760/cma.j.issn.0254-6450.2013.011.018
Chinese Journal of Epidemiology, Volume 34, Issue 11,2013, Pages 1105-1110, doi:10.3760/cma.j.issn.0254-6450.2013.011.014