FRKOVIĆ, Marija; KLAPAN, Tajana; MOSCATELLO, Ines; FRKOVIĆ, Marijan. Diagnostic value of pneumoperitoneum on plain abdominal film. Radiology and Oncology, [S. l.], v. 35, n. 4, 2001. Disponível em: https://www.radioloncol.com/index.php/ro/article/view/1430. Acesso em: 11 may. 2026.