D. I. Bharat, D. R. Singh, D. C. Sehgal, D. S. Sharma, D. A. K. Saha, and D. U. K. Paul, “Study of pulmonary function test in newly diagnosed diabetes in a tertiary care teaching hospital, Kishanganj, Bihar: Study of pulmonary function test in newly diagnosed diabetes”, ijirms, vol. 3, no. 08, p. 2142 to 2147, Aug. 2018.