M. Fortina, S. Carta, and E. Del Vecchio, et al., “Retroperitoneal hematoma due to spontaneous lumbar artery rupture during fondaparinux treatment. Case report and review of the literature”, Acta Biomed, vol. 78, no. 1, pp. 46–50, Apr. 2007, Accessed: Jul. 27, 2024. [Online]. Available: https://mattioli1885journals.com/index.php/actabiomedica/article/view/1927