RT Journal Article SR Electronic T1 Progressive dysphagia without dysarthria JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 197 OP 197 DO 10.1136/practneurol-2012-000441 VO 13 IS 3 A1 Wakerley, Benjamin R A1 Warburton, Katherine A1 Plaha, Puneet A1 Bojanic, Stana A1 Jackson, Matthew A1 Turner, Martin R YR 2013 UL http://pn.bmj.com/content/13/3/197.abstract AB