NGUYỄN, Minh Tuấn; MAI, Tiến Dũng; NGUYỄN, Thành Luân; NGUYỄN, Đình Hợp; TRẦN, Nhật Linh; NGUYỄN, Tiến Mạnh. THREE CASES OF PNEUMOPERITONEUM OF UNKNOWN ORIGIN ASSOCIATED WITH ACUTE ABDOMINAL PAIN WERE TREATED AT THE DEPARTMENT OF GENERAL SURGERY, 19-8 HOSPITAL. Vietnam Medical Journal, [S. l.], v. 555, n. 2, 2025. DOI: 10.51298/vmj.v555i2.16041. Disponível em: https://tapchiyhocvietnam.vn/index.php/vmj/article/view/16041. Acesso em: 17 sep. 2026.