Pujol J, Martinez-Vilavella G, Macia D, Fenoll R, Alvarez-Pedrerol M, Rivas I, Forns J, Blanco-Hinojo L, Capellades J, Querol X, Deus J, Sunyer J. Traffic pollution exposure is associated with altered brain connectivity in school children. Neuroimage. 2016 Apr;1(129):175-84. doi: 10.1016/j.neuroimage.2016.01.036.
Britt (DiBenedetti) DM, Collins FL, Cohen LM. Cigarette smoking and chewing gum use among college students. J Appl Biobehav Res. 2007 Jun 4;4(2):85-90. doi: 10.1111/j.1751-9861.1999.tb00057.x