CHINESE JOURNAL OF ENDEMIOLOGY, Volume 30, Issue 2,2011, Pages 162-164, doi:10.3760/cma.j.issn.1000-4955.2011.02.011
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 30, Issue 2,2011, Pages 152-157, doi:10.3760/cma.j.issn.1000-4955.2011.02.009
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 30, Issue 2,2011, Pages 176-178, doi:10.3760/cma.j.issn.1000-4955.2011.02.017
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 30, Issue 2,2011, Pages 165-168, doi:10.3760/cma.j.issn.1000-4955.2011.02.012
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 30, Issue 2,2011, Pages 184-187, doi:10.3760/cma.j.issn.1000-4955.2011.02.020