Šustić, A., Miletić, D. and Cicvarić, T. (2005) “Ultrasonography of gallbladder in surgical patients with a prolonged stay (> 14 days) in the intensive care unit”, Radiology and Oncology, 39(4). Available at: https://www.radioloncol.com/index.php/ro/article/view/1280 (Accessed: 24 December 2025).