Riaz, Omer, Ahsan Mahmood, Zeeshan Ahmed Alvi, , Saffia Gul, Shahid Rasul, and Naeem Haider. “FREQUENCY OF INCREASE IN SERUM TUMOR MARKER CARCINOEMBRYONIC ANTIGEN (CEA) LEVELS IN PRIMARY BREAST CANCER (PBC) PATIENTS AT THE TIME OF DIAGNOSIS: Serum Tumor Marker Carcinoembryonic Antigen Levels in PBC”. Pakistan Armed Forces Medical Journal 67, no. 2 (April 30, 2017): 322–26. Accessed May 15, 2024. https://pafmj.org/PAFMJ/article/view/415.