Biswas, P.K., Sardar, M.H., Saha, G.C., Hossain, M.S., Rahman, M.M., Chowdhury, M.K. and Paul, T. 2019. Clinical Value of Serum Cancer Antigen 19-9 as a Tumor Screening Marker among Healthy Individuals. Journal of Medicine. 20, 2 (Jun. 2019), 92–94. DOI:https://doi.org/10.3329/jom.v20i2.42009.