THE ROLE OF ENDOMETRIAL THICKNESS AND SERUM BETA-HUMAN CHORIONIC GONADOTROPIN LEVELS AS PREDICTIVE MARKERS OF DELAYED FAILURE IN MEDICAL ABORTION. Macedonian J Anaesth [Internet]. 2025 Sep. 8 [cited 2026 Jun. 11];9(3):45-53. Available from: https://new.mja.mk/index.php/journal/article/view/57