Biswas, P.S. , Al Amin, A.M.M. and Haque, S.D. 2021. Study on serum zinc and copper levels in pulmonary tuberculosis patients before starting Directly Observed Treatment, Short-course. Mediscope. 8, 2 (Oct. 2021), 122–127. DOI:https://doi.org/10.3329/mediscope.v8i2.55319.