title: Oblique plain radiographs are useful for detecting opaque presacral ureteral calculi.
authors.affiliation: Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD 21205.
authors.forename: O M
authors.initials: OM
authors.lastname: Gatewood
authors.forename: J E
authors.initials: JE
authors.lastname: Berkowitz
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D011187:Posture; D011859:Radiography; D014514:Ureteral Calculi / Q000000981:diagnostic imaging*