Ibrahim EL-Zoghby, Sara Aly, Shereen Elgengeehy, M. Hamed, and 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, vol. 30, no. 7, pp. 125–132, Apr. 2023.