Chinese Journal of Epidemiology, Volume 40, Issue 1,2019, Pages 5-6, doi:10.3760/cma.j.issn.0254-6450.2019.01.002
Chinese Journal of Epidemiology, Volume 40, Issue 1,2019, Pages 41-45, doi:10.3760/cma.j.issn.0254-6450.2019.01.009
Chinese Journal of Epidemiology, Volume 40, Issue 1,2019, Pages 93-98, doi:10.3760/cma.j.issn.0254-6450.2019.01.019
Chinese Journal of Epidemiology, Volume 40, Issue 1,2019, Pages 79-83, doi:10.3760/cma.j.issn.0254-6450.2019.01.016
Chinese Journal of Epidemiology, Volume 40, Issue 1,2019, Pages 20-25, doi:10.3760/cma.j.issn.0254-6450.2019.01.006