A multilevel-based study of school policy for tobacco control in relation to cigarette smoking among children in elementary schools: gender differences

H. L Huang, F. L Chen, C. C Hsu, Y. Y Yen, T Chen, C. M Huang, H. Y Shi, C. Y Hu and C. H. Lee

Health Education Research 25 ( 3 ): 451 - 463 , 2010