Khan, Ghulam Jillani, et al. “EFFECTS OF LONG-TERM USE OF TOBACCO ON TASTE RECEPTORS AND SALIVARY SECRETION”. Journal of Ayub Medical College Abbottabad, vol. 15, no. 4, Dec. 2003, https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/3994.