Chinese Journal of Epidemiology, Volume 36, Issue 6,2015, Pages 663-664, doi:10.3760/cma.j.issn.0254-6450.2015.06.027
Chinese Journal of Epidemiology, Volume 36, Issue 6,2015, Pages 547-551, doi:10.3760/cma.j.issn.0254-6450.2015.06.002
Chinese Journal of Epidemiology, Volume 36, Issue 6,2015, Pages 569-575, doi:10.3760/cma.j.issn.0254-6450.2015.06.007
Chinese Journal of Epidemiology, Volume 36, Issue 6,2015, Pages 664-666, doi:10.3760/cma.j.issn.0254-6450.2015.06.028
Chinese Journal of Epidemiology, Volume 36, Issue 6,2015, Pages 649-652, doi:10.3760/cma.j.issn.0254-6450.2015.06.024