The Use of High-Flow Nasal Cannula and Non-Invasive Mechanical Ventilation in the Management of COVID-19 Patients: A Prospective Study. - Arunachala, Sumalatha; Parthasarathi, Ashwaghosha; Basavaraj, Chetak Kadabasal; Malamardi, Sowmya; Chandran, Shreya; Venkataraman, Hariharan; Ullah, Mohammed Kaleem; Ganguly, Koustav; Upadhyay, Swapna; Mahesh, Padukudru Anand (Viruses (1999-4915), 2023)