title: The blob, the line and the shadow.
authors.affiliation: University of Alabama at Birmingham, USA.
authors.forename: Krys
authors.initials: K
authors.lastname: Geissler
mesh_terms: D016477:Artifacts; D006801:Humans; D011786:Quality Control; D013902:Radiography, Thoracic / Q000592:standards*; D013679:Technology, Radiologic / Q000379:methods*