RT Journal Article SR Electronic T1 Primary healthcare factors and hospital admission rates for COPD JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 589 OP 589 DO 10.1136/thoraxjnl-2013-204798 VO 69 IS 6 A1 Jones, Rupert YR 2014 UL http://thorax.bmj.com/content/69/6/589.1.abstract AB