title: Pneumoperitoneum--the radiographic and clinical virtues of the supine abdominal film.
authors.forename: Stephen R
authors.initials: SR
authors.lastname: Baker
mesh_terms: D006801:Humans; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging*; D011860:Radiography, Abdominal / Q000379:methods*; D012680:Sensitivity and Specificity; D016683:Supine Position; D014057:Tomography, X-Ray Computed