Das, Dr. Saptadipa, et al. “Prevalence and Pattern of Lung Dysfunction in Patients With Type 2 DM Attending a Tertiary Health Care Centre of Tripura by Spirometry”. RA Journal Of Applied Research, vol. 8, no. 2, Feb. 2022, pp. 147-9, doi:10.47191/rajar/v8i2.13.