Mahmud, S., Alamgir, A., Hoque, M. G., Husain, M. A., & Nahar, N. (2012). Spiro Metric and Some Sellctive Immunological Changes Among 49 Cases of Different Respiratory Diseases. Journal of Chittagong Medical College Teachers' Association, 22(2), 37–43. https://doi.org/10.3329/jcmcta.v22i2.50778