M. W. Alhamd, A. J. Abdolhusain, Y. J. Lola, and M. A. Al-Gharrawy, “Early Diagnosis of Respiratory Disease in Light of COVID-19 Infection and Use of Oxygen Concentrators and CPAP Devices for the Treatment of Respiratory Failure”, IJOIR, vol. 10, no. 1, pp. 34–40, Jun. 2023.