中国热带医学
平顶山市儿童免疫规划疫苗接种率抽样调查
杨秋峰，张俊杰, 魏海涛
Sampling survey of national immunization program vaccination coverage of children aged 2 to 3 years in Pingdingshan city.
YANG Qiu-feng, HANG Jun-jie， WEI Hai-tao
中国热带医学 . 2014, (5): 618 -620 .