RT Journal Article SR Electronic T1 Congenital myasthenic syndromes: an update JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 80 OP 91 DO 10.1136/practneurol-2012-000404 VO 13 IS 2 A1 Sarah Finlayson A1 David Beeson A1 Jacqueline Palace YR 2013 UL http://pn.bmj.com/content/13/2/80.abstract AB