RT Journal Article SR Electronic T1 Ventilatory failure on acute take JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 630 OP 634 DO 10.7861/clinmedicine.5-6-630 VO 5 IS 6 A1 Biswajit Chakrabarti A1 Robert M Angus YR 2005 UL http://www.rcpjournals.org/content/5/6/630.abstract AB