Brestovci, Behlul, and Agron Rexhepi. “Morpho-Spiro-Voice-Acoustic Differences Between Smokers and Non-Smokers”. International Journal of Medical and Surgical Sciences 12, no. 1 (August 11, 2025): 1–12. Accessed December 5, 2025. https://revistas.uautonoma.cl/index.php/ijmss/article/view/2926.