Ahmed, A., Shahriar, S., Shimu, F., Alam, S.S.U. and Sarker, R.D. 2020. Prognostic Relevance of Significantly Raised CA 19-9 with Choledocholithiasis to Malignant Pathologies of HBS: An Early Experience in Dept. of Hepatobiliary Surgery at ShSMCH, Dhaka. Journal of Shaheed Suhrawardy Medical College. 11, 2 (Sep. 2020), 119–123. DOI:https://doi.org/10.3329/jssmc.v11i2.48962.