RT Journal Article SR Electronic T1 The changing landscape of non-invasive ventilation in amyotrophic lateral sclerosis JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 368 OP 369 DO 10.1136/jnnp-2012-302253 VO 83 IS 4 A1 Bourke, Stephen C A1 O'Neill, Catherine L A1 Williams, Tim L A1 Peel, Edwin T A1 Gibson, G John A1 McDermott, Christopher J A1 Shaw, Pamela J YR 2012 UL http://jnnp.bmj.com/content/83/4/368.abstract AB