Atanasov TD, Todorova KT, Tsvetanov AI. Spontaneous retroperitoneal hematoma in COVID-19 patients. Int Surg J [Internet]. 2022 Jul. 26 [cited 2025 Nov. 10];9(8):1464-9. Available from: https://www.ijsurgery.com/index.php/isj/article/view/8930