Pulmonary hypertension in COPD: results from the ASPIRE registry
Judith Hurdman, Robin Condliffe, Charlie A. Elliot, Andrew Swift, Smitha Rajaram, Christine Davies, Catherine Hill, Neil Hamilton, Iain J. Armstrong, Catherine Billings, Lauren Pollard, Jim M. Wild, Allan Lawrie, Rod Lawson, Ian Sabroe, David G. Kiely
European Respiratory Journal Jun 2013, 41 (6) 1292-1301; DOI: 10.1183/09031936.00079512