Sinha, Iman, Ratul Basu, Aisha Sultan, Sayantan Mukhopadhyay, Bibhukalyani Das, and Sukanta Sen. 2020. “Comparison of Esmolol Versus Diltiazem for Attenuation of Cardiovascular Response During Laryngoscopy and Endotracheal Intubation in Patients Undergoing Elective Craniotomy”. International Journal of Health and Clinical Research 3 (8):51-59. https://ijhcr.com/index.php/ijhcr/article/view/299.