Ibrahim EL-Zoghby; Sara Aly; Shereen Elgengeehy; M.Hamed; Karim Mashhour. Lung Ultrasound Scoring System Vs ROX Index As a Predictor for Progression to the Invasive Mechanical Ventilation in COVID-19 Patients. J Popl Ther Clin Pharmacol 2023, 30 (5), 307-314. https://doi.org/10.47750/jptcp.2023.30.05.031.