“Correlation between Carcinoembryonic Antigen (CEA) Levels and Colorectal Carcinoma Stage Using Computed Tomography (CT) scan : a Study at Dr. Hasan Sadikin Central General Hospital Bandung 2019”, ijmhs, vol. 10, no. 01, pp. 765–768, Jan. 2020, doi: 10.15520/ijmhs.v10i01.2779.