Giri, Vishal P., Debranjan Datta, and Parvathi Devi. “Olanzapine-Induced Black Hairy Tongue: A Rare Case”. International Journal of Basic & Clinical Pharmacology 6, no. 8 (July 22, 2017): 2091–2093. Accessed April 23, 2025. https://www.ijbcp.com/index.php/ijbcp/article/view/1808.