title: Give students 'knowledge holes' to fill.
authors.affiliation: University of Alabama at Birmingham, USA.
authors.forename: S
authors.initials: S
authors.lastname: Dowd
mesh_terms: D003200:Computer User Training; D006801:Humans; D008297:Male; D011829:Radiation Dosage; D013663:Teaching / Q000379:methods*; D013679:Technology, Radiologic / Q000193:education*