CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue z1,2003, Pages 392-394, doi:10.3760/cma.j.issn.1000-4955.2003.z1.211
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue z1,2003, Pages 139-142, doi:10.3760/cma.j.issn.1000-4955.2003.z1.067
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue z1,2003, Pages 266-268, doi:10.3760/cma.j.issn.1000-4955.2003.z1.148
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue z1,2003, Pages 212-214, doi:10.3760/cma.j.issn.1000-4955.2003.z1.108
CHINESE JOURNAL OF ENDEMIOLOGY, Volume 22, Issue z1,2003, Pages 73-74, doi:10.3760/cma.j.issn.1000-4955.2003.z1.026