Assessment of Sensitivity and Specificity of CEA in Primary Diagnosis of patients with Gastrointestinal Malignancy. Bangabandhu Sheikh Mujib Medical Coll J [Internet]. 2024 Sep. 5 [cited 2026 Jul. 8];3(2):70-3. Available from: https://banglajol.info/index.php/BSMMCJ/article/view/75927