RT Journal Article SR Electronic T1 National Institute for Health Research Clinical Research Network JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 638 OP 638 DO 10.7861/clinmedicine.10-6-638 VO 10 IS 6 A1 David Warriner A1 Richard Turner A1 Will Shippam YR 2010 UL http://www.rcpjournals.org/content/10/6/638.1.abstract