Paweł Jurczak, Dominik Małek, Paweł Puczel, Marta Siwek, Klaudia Sztaba. CLINICAL UTILITY OF CYFRA 21-1 IN ONCOLOGY: A COMPREHENSIVE REVIEW OF CURRENT EVIDENCE AND FUTURE DIRECTIONS. IJITSS [Internet]. 2025Dec.30 [cited 2026Mar.4];5(4(48). Available from: https://rsglobal.pl/index.php/ijitss/article/view/4207