RT Journal Article SR Electronic T1 Confusion after a game of bridge JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 342 OP 345 DO 10.1136/jnnp.2007.131284 VO 7 IS 5 A1 Will Whiteley A1 Martin Dennis YR 2007 UL http://pn.bmj.com/content/7/5/342.abstract AB