Chinese Journal of Endemiology, Volume 31, Issue 4,2012, Pages 381-384, doi:10.3760/cma.j.issn.1000-4955.2012.04.009
Chinese Journal of Endemiology, Volume 31, Issue 4,2012, Pages 466-469, doi:10.3760/cma.j.issn.1000-4955.2012.04.034
Chinese Journal of Endemiology, Volume 31, Issue 4,2012, Pages 419-422, doi:10.3760/cma.j.issn.1000-4955.2012.04.018
Chinese Journal of Endemiology, Volume 31, Issue 4,2012, Pages 369-372, doi:10.3760/cma.j.issn.1000-4955.2012.04.005
Chinese Journal of Endemiology, Volume 31, Issue 4,2012, Pages 397-400, doi:10.3760/cma.j.issn.1000-4955.2012.04.013