title: The use of audio-visual aids in the introduction of new equipment.
mesh_terms: D001296:Audiovisual Aids; D003142:Communication; D006801:Humans; D008370:Manuals as Topic; D008568:Memory; D011859:Radiography / Q000295:instrumentation*; D013637:Tape Recording; D013679:Technology, Radiologic / Q000193:education*