ALRUWAILI, Ali Muqbil et al. Cigarette and shisha use among students of medical colleges at Al-Jouf university. Medical Research Archives, [S.l.], v. 2, n. 7, nov. 2015. ISSN 2375-1924. Available at: <https://esmed.org/MRA/mra/article/view/344>. Date accessed: 21 nov. 2024.