Ghimire, B., Kansakar, P. B. S. and Sngh, Y. P. (2021) “Comparison of serum biomarkers cifra 21-1 and ca 19-9 in biliary tract cancers”, Journal of Nepal Health Research Council, 19(03), pp. 626-630. doi: 10.33314/jnhrc.v19i3.2044.