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 Jun. 30];3(2):70-3. Available from: https://www.banglajol.info/index.php/BSMMCJ/article/view/75927