Velásquez, Jorge, Arcesio Blanco, and Martín Watemberg. “Sobredosis De Verapamil. Informe De Un Caso”. Colombia Medica 9, no. 3,4 (December 30, 1978): 178–180. Accessed November 22, 2024. https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/2882.