Value of inferior vena cava diameter respiratory change as a marker of heart failure in COPD exacerbation: Cyrine KOURAICHI, Adel SEKMA, Hamdi BOUBAKER, Wahid BOUIDA, Semir NOUIRA. (2022). Tunisian Journal of Emergency Medicine, 2(2). https://tjem.tn/index.php/tjem/article/view/22