title: Teaching the Line-Focus Principle to First-Year Radiography Students.
authors.forename: Lisa A
authors.initials: LA
authors.lastname: Rhoden
authors.forename: John L
authors.initials: JL
authors.lastname: Callaway
mesh_terms: D006801:Humans; D019212:Multimedia; D013664:Teaching Materials; D013679:Technology, Radiologic / Q000193:education*