“DIAGNOSTIC VALUE OF THE CA-125 CEA RATIO FOR DIFFERENTIATING PRIMARY OVARIAN CARCINOMA FROM GASTROINTESTINAL MALIGNANCIES IN A TERTIARY GYNECOLOGIC ONCOLOGY CENTER IN NORTH MACEDONIA”. Macedonian Journal of Anaesthesia, vol. 10, no. 1, Mar. 2026, pp. 43-49, https://doi.org/10.67214/e95s0t42.