Chinese Journal of Epidemiology, Volume 40, Issue 8,2019, Pages 924-929, doi:10.3760/cma.j.issn.0254-6450.2019.08.010
Chinese Journal of Epidemiology, Volume 40, Issue 8,2019, Pages 880-882, doi:10.3760/cma.j.issn.0254-6450.2019.08.002
Chinese Journal of Epidemiology, Volume 40, Issue 8,2019, Pages 976-981, doi:10.3760/cma.j.issn.0254-6450.2019.08.019
Chinese Journal of Epidemiology, Volume 40, Issue 8,2019, Pages 1023-1024, doi:10.3760/cma.j.issn.0254-6450.2019.08.028
Chinese Journal of Epidemiology, Volume 40, Issue 8,2019, Pages 879, doi:10.3760/cma.j.issn.0254-6450.2019.08.001