RT Journal Article SR Electronic T1 Rules of tongue: look, listen, feel JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 62 OP 63 DO 10.1136/practneurol-2013-000744 VO 14 IS 1 A1 Tom Hughes YR 2014 UL http://pn.bmj.com/content/14/1/62.abstract AB