Spasovа V, Spasov M, Spasov H. CA 19-9 AND ITS SIGNIFICANCE IN DIAGNOSIS AND SCREENING OF COLORECTAL CANCER. kij [Internet]. 2026 Jun. 3 [cited 2026 Aug. 20];76(4):375-80. Available from: https://ojs.ikm.mk/index.php/kij/article/view/8327