RT Journal Article SR Electronic T1 Pathergy test JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 301 OP 302 DO 10.1136/practneurol-2011-000072 VO 11 IS 5 A1 Mark R Baker A1 Emma V Smith A1 Osheik A Seidi YR 2011 UL http://pn.bmj.com/content/11/5/301.abstract AB