RT Journal Article SR Electronic T1 Abnormalities of Respiration during sleep JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 332 OP 332 DO 10.1136/thx.43.4.332 VO 43 IS 4 A1 JRS YR 1988 UL http://thorax.bmj.com/content/43/4/332.1.abstract AB