RT Journal Article SR Electronic T1 ‘Good vibrations’: positional treatments for obstructive sleep apnoea JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 296 OP 296 DO 10.1136/thoraxjnl-2019-214404 VO 75 IS 4 A1 Heinzer, Raphael YR 2020 UL http://thorax.bmj.com/content/75/4/296.abstract AB