Chinese Journal of Epidemiology, Volume 39, Issue 3,2018, Pages 295-301, doi:10.3760/cma.j.issn.0254-6450.2018.03.009
Chinese Journal of Epidemiology, Volume 39, Issue 3,2018, Pages 382-386, doi:10.3760/cma.j.issn.0254-6450.2018.03.025
Chinese Journal of Epidemiology, Volume 39, Issue 3,2018, Pages 317-321, doi:10.3760/cma.j.issn.0254-6450.2018.03.013
Chinese Journal of Epidemiology, Volume 39, Issue 3,2018, Pages 268-272, doi:10.3760/cma.j.issn.0254-6450.2018.03.004
Chinese Journal of Epidemiology, Volume 39, Issue 3,2018, Pages 280-285, doi:10.3760/cma.j.issn.0254-6450.2018.03.006