Impact of Different Norepinephrine Doses on Accuracy of Peripheral Perfusion Index in Predicting Tissue Perfusion in Septic Shock Patients. - Elbaghdady, Alaa Abdelghafar; ElSharkawy, Mohammed Said; Elghafar, Mohamed Samir Abd; El-Baradey, Ghada Fouad (Egyptian Journal of Hospital Medicine, 2026)