Chinese Journal of Epidemiology, Volume 32, Issue 10,2011, Pages 978-982, doi:10.3760/cma.j.issn.0254-6450.2011.10.006
Chinese Journal of Epidemiology, Volume 32, Issue 10,2011, Pages 996-1000, doi:10.3760/cma.j.issn.0254-6450.2011.10.010
Chinese Journal of Epidemiology, Volume 32, Issue 10,2011, Pages 973-977, doi:10.3760/cma.j.issn.0254-6450.2011.10.005
Chinese Journal of Epidemiology, Volume 32, Issue 10,2011, Pages 1055-1056, doi:10.3760/cma.j.issn.0254-6450.2011.10.025
Chinese Journal of Epidemiology, Volume 32, Issue 10,2011, Pages 1051-1053, doi:10.3760/cma.j.issn.0254-6450.2011.10.023