Audit feasibility for geometric distortion in magnetic resonance imaging for radiotherapy oleh Meshal Alzahrani, David A Broadbent, Robert Chuter, Bashar Al-Qaisieh, Steven Jackson, Hutton Michael, Robert I Johnstone, Simon Shah, Andreas Wetscherek, H. Joan Chick, Jonathan J Wyatt, Hazel Mhairi McCallum, Richard Speight