Vahapoglu, Ayse, Sinan Uzman, Hasibe Aslan Sunul, Mehmet Toptas, Ibrahim Akkoc, and Ilke Isitemiz. 2016. “Comparison of Bolus and Infusion of Esmolol on Hemodynamic and Parathormone Responses to Tracheal Intubation”. International Journal of Basic and Clinical Studies 5 (1):54-62. https://www.ijbcs.com/ijbcs/article/view/ijbcs05107.