Review [Educational intervention in schools for the prevention of smoking: evaluation of the process. Project: OCTOPUS].
López González L, Comas Fuentes A, Herrero Puente P, Pereiro Gallo S, Fernández Carral M, Thomas H, Douglas J, Markham W, Charlton A, de Vries H, et al. Rev Esp Salud Publica. 1998 Jul-Aug; 72(4):303-18.