›› 2011, Vol. 31 ›› Issue (11): 1632-.doi: 10.3969/j.issn.1674-8115.2011.11.028
• Original article (Public health administration) • Previous Articles Next Articles
BAO Ling1, ZHANG Ya-qing2, ZHU Qing-qing3, ZHANG Wei4, CHEN Ying5, LI Li-sha6, GUO Xiu-yan7