S. . Zameen, Amanullah, S. . Hussain, S. . Shoukat, M. . Saad, and J. . Zaib, “The Impact of a High-Fat, Low-Carbohydrate Enteral Formula on Metabolic and Respiratory Function in Chronic Obstructive Pulmonary Disease Patients”, Pak J Chest Med, vol. 27, no. 3, pp. 196–202, Dec. 2021.