Terziyski, Boyan, Irina Markova, Svetlozar Slavov, and Sergei Address. “Associations of Acetylsalicylic Acid, Low-Molecular-Weight Heparin and Nattokinase Use With the Presence and Size of Subchorionic Hematoma in a Prospective Cohort”. Proceedings of the Bulgarian Academy of Sciences 79, no. 9 (September 30, 2026): 1254–1260. Accessed October 4, 2026. https://www.proceedings.bas.bg/index.php/cr/article/view/1053.