›› 2010, Vol. 30 ›› Issue (8): 929-.doi: 10.3969/j.issn.1674-8115.2010.08.014
• Original article (Public health administration) • Previous Articles Next Articles
CHEN Yang1, ZHAN Guo-fang2, DING Lei1, LU Lin1, ZHANG Yun-ting1, ZHANG Hao1, ZHAO Ming3, LI Zhi-jian3, MA Jin1