Grama, Paul, Miruna Pepa Oltea, and Corina Zah. “Effect of Caffeine on Pain Management”. Acta Marisiensis - Seria Medica 66, no. 4 (September 25, 2020): 127-131. Accessed October 6, 2022. https://ojs.actamedicamarisiensis.ro/index.php/amm/article/view/12.