Chinese Journal of Epidemiology, Volume 38, Issue 6,2017, Pages 759-762, doi:10.3760/cma.j.issn.0254-6450.2017.06.014
Chinese Journal of Epidemiology, Volume 38, Issue 6,2017, Pages 832-836, doi:10.3760/cma.j.issn.0254-6450.2017.06.028
Chinese Journal of Epidemiology, Volume 38, Issue 6,2017, Pages 805-809, doi:10.3760/cma.j.issn.0254-6450.2017.06.023
Chinese Journal of Epidemiology, Volume 38, Issue 6,2017, Pages 784-788, doi:10.3760/cma.j.issn.0254-6450.2017.06.019
Chinese Journal of Epidemiology, Volume 38, Issue 6,2017, Pages 810-813, doi:10.3760/cma.j.issn.0254-6450.2017.06.024