RT Journal Article SR Electronic T1 Brain MRI roulette JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 188 OP 190 DO 10.1136/jnnp.2010.217745 VO 10 IS 4 A1 Rustam Al-Shahi Salman YR 2010 UL http://pn.bmj.com/content/10/4/188.abstract AB