CO17 | Clinical relevance of isolated anti-phosphatidylserine/ prothrombin antibody positivity: A. Hoxha1, P. Žigon2,3, L. Katja2,3, S. Čučnik2,4, Ž. Rotar2,5, S. Gavasso1, P. Zerbinati1, G. Gobbo1, P. Simioni1 | 1University of Padua, Internal Medicine Unit, Thrombotic and Hemorrhagic Centre, Department of Medicine-DIMED, Padua, Italy; 2University Medical Centre Ljubljana, Department of Rheumatology, Ljubljana, Slovenia; 3University of Primorska, Faculty of Mathematics, Natural Sciences and Information Technologies, Koper, Slovenia; 4University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia; 5University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia. Bleeding Thromb Vasc Biol [Internet]. 2025 Oct. 22 [cited 2026 Apr. 17];4(s1). Available from: https://www.btvb.org/btvb/article/view/221