CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue 3,2003, Pages 250-252, doi:10.3760/cma.j.issn.1000-4955.2003.03.021
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CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue 3,2003, Pages 221-222, doi:10.3760/cma.j.issn.1000-4955.2003.03.010
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue 3,2003, Pages 261-261, doi:10.3760/cma.j.issn.1000-4955.2003.03.037
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue 3,2003, Pages 245-247, doi:10.3760/cma.j.issn.1000-4955.2003.03.019