In this presentation There is no narration on this presentation. Consists of 20 two-part questions. Write or type your answers to submit later for feedback and a CPD hour certificate. Taking the quiz and reviewing the feedback for you answers should total about 1 hour. Pushing the space bar or clicking the mouse will make some of the questions appear on the slides (and disappear, so you can see the radiographs). If you need to go back, push p for previous.