Chinese Journal of Epidemiology, Volume 40, Issue 3,2019, Pages 259-265, doi:10.3760/cma.j.issn.0254-6450.2019.03.002
Chinese Journal of Epidemiology, Volume 40, Issue 3,2019, Pages 354-359, doi:10.3760/cma.j.issn.0254-6450.2019.03.019
Chinese Journal of Epidemiology, Volume 40, Issue 3,2019, Pages 266-271, doi:10.3760/cma.j.issn.0254-6450.2019.03.003
Chinese Journal of Epidemiology, Volume 40, Issue 3,2019, Pages 284-289, doi:10.3760/cma.j.issn.0254-6450.2019.03.006
Chinese Journal of Epidemiology, Volume 40, Issue 3,2019, Pages 335-340, doi:10.3760/cma.j.issn.0254-6450.2019.03.015