CHINESE JOURNAL OF ENDEMIOLOGY, Volume 19, Issue 1,2000, Pages 36-40, doi:10.3760/cma.j.issn.1000-4955.2000.01.014
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 19, Issue 1,2000, Pages 57-59, doi:10.3760/cma.j.issn.1000-4955.2000.01.020
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 19, Issue 1,2000, Pages 6, doi:10.3760/cma.j.issn.1000-4955.2000.01.003
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 19, Issue 1,2000, Pages 69-70, doi:10.3760/cma.j.issn.1000-4955.2000.01.024
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 19, Issue 1,2000, Pages 64, doi:10.3760/cma.j.issn.1000-4955.2000.01.033