Das, S., Kakoti, L. mudra, Ahmed, S., Sarma, A., & ch kataki, A. (2020). Study of Serum CEA and Ca 19.9 in Esophageal Squamous Carcinoma and ROC Curve Analysis. Asian Pacific Journal of Cancer Biology, 5(4), 141-145. https://doi.org/10.31557/apjcb.2020.5.4.141-145