Chinese Journal of Endemiology, Volume 30, Issue 6,2011, Pages 627-632, doi:10.3760/cma.j.issn.1000-4955.2011.06.010
Chinese Journal of Endemiology, Volume 30, Issue 6,2011, Pages 706-708, doi:10.3760/cma.j.issn.1000-4955.2011.06.034
Chinese Journal of Endemiology, Volume 30, Issue 6,2011, Pages 620-622, doi:10.3760/cma.j.issn.1000-4955.2011.06.008
Chinese Journal of Endemiology, Volume 30, Issue 6,2011, Pages 611-615, doi:10.3760/cma.j.issn.1000-4955.2011.06.006
Chinese Journal of Endemiology, Volume 30, Issue 6,2011, Pages 623-626, doi:10.3760/cma.j.issn.1000-4955.2011.06.009