CHINESE JOURNAL OF ENDEMIOLOGY, Volume 21, Issue 5,2002, Pages 419-421, doi:10.3760/cma.j.issn.1000-4955.2002.05.029
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 21, Issue 5,2002, Pages 341-343, doi:10.3760/cma.j.issn.1000-4955.2002.05.002
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 21, Issue 5,2002, Pages 426-427, doi:10.3760/cma.j.issn.1000-4955.2002.05.037
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 21, Issue 5,2002, Pages 377-379, doi:10.3760/cma.j.issn.1000-4955.2002.05.014
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 21, Issue 5,2002, Pages 428-428, doi:10.3760/cma.j.issn.1000-4955.2002.05.038