APA Style

Khan, D, Z, H. (2019). Comparative study on pulmonary function tests and electrocardiographic alterations in smokers and non-smokers . BSMMU: Dr. Zahid Hasan Khan.

MLA Style

Khan, Dr., Zahid, Hasan. "Comparative study on pulmonary function tests and electrocardiographic alterations in smokers and non-smokers". BSMMU: Dr. Zahid Hasan Khan, 2019. Text.