RT Journal Article SR Electronic T1 Chronic obstructive pulmonary disease: consequences beyond the lung JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 71 OP 74 DO 10.7861/clinmedicine.12-1-71 VO 12 IS 1 A1 Dinesh Shrikrishna A1 Nicholas S Hopkinson YR 2012 UL http://www.rcpjournals.org/content/12/1/71.abstract