B. Lokeswari, B. Roshini, K. Sravani, and T. C. Reddy, “Serial changes in oxygenation indices and arterial blood gas parameters during high flow nasal cannula therapy in children with moderate to severe respiratory distress: a prospective observational study”, Int J Contemp Pediatr, vol. 13, no. 11, pp. 2274–2279, Oct. 2026.