求助英文一篇谢谢
http://www.ingentaconnect.com/content/ap/pm/2001/00000033/00000006/art00922
The Cost-Effectiveness of IntensiveNational School-Based Anti-Tobacco Education: Results from the Tobacco PolicyModel
Authors: Tengs, T.O.; Osgood, N.D.; Chen,L.L.
Source: Preventive Medicine, Volume 33,Number 6, December 2001, pp. 558-570(13)