Pujol J, Fenoll R, Macia D, Martinez-Vilavella G, Alvarez-Pedrerol M, Rivas I, Forns J, Deus J, Blanco-Hinojo L, Querol X, Sunyer J. Airborne copper exposure in school environments associated with poorer motor performance and altered basal ganglia. Brain Behav. 2016 Apr 22;e00467. doi: 10.1002/brb3.467
Cann CI, Fried MP, Rothman KJ. Epidemiology of squamous-cell cancer of the head and neck. Otolaryngol Clin N Am. 1985 Aug 1;18(3):367-88.