Hebbar AK, T.M. S, Iyanna H, B.V. S, B.V. SK. Prospective study of comparison between the ultrasonography with the plain radiography in the diagnosis of pneumoperitoneum of hollow viscus perforation. Int J Res Med Sci [Internet]. 2017 Jan. 20 [cited 2025 Oct. 9];2(1):154-9. Available from: https://www.msjonline.org/index.php/ijrms/article/view/2090