Nugent, Kenneth, and Hawa Edriss. “The Utility of the Shock Index in Patients With Acute Respiratory Failure”. The Southwest journal of medicine 5, no. 17 (January 16, 2017): 1-2. Accessed June 26, 2026. https://pulmonarychronicles.com/index.php/pulmonarychronicles/article/view/365.