2.A cost-effectiveness analysis of universal childhood hepatitis A vaccination in China
http://www.sciencedirect.com/science/article/pii/S0264410X08007056
3.Factor analysis and modeling of the allocation of health technical personnel in rural China
http://en.cnki.com.cn/Article_en/CJFDTOTAL-WSZY199804007.htm
谢谢大家啊……………………



雷达卡






京公网安备 11010802022788号







