title: Radiological signs of pneumoperitoneum: a pictorial review.
authors.affiliation: Department of Radiology, Bristol Royal Infirmary, Bristol.
authors.forename: Joanna
authors.initials: J
authors.lastname: Kasznia-Brown
authors.forename: Chris
authors.initials: C
authors.lastname: Cook
mesh_terms: D000388:Air; D003937:Diagnosis, Differential; D006801:Humans; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging*; D011187:Posture; D011860:Radiography, Abdominal / Q000592:standards*; D014057:Tomography, X-Ray Computed / Q000592:standards