Yolanda, S. (2022). The Association of Age, Gender, and Carcinoembryonic Antigen (CEA) levels with Adenocarcinoma Grading in Patients with Colorectal Cancer. Jurnal Medika : Karya Ilmiah Kesehatan, 7(1), 55-61. doi:10.35728/jmkik.v7i1.986