RT Journal Article SR Electronic T1 Management of rare diseases in respiratory medicine JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 447 OP 448 DO 10.7861/clinmedicine.7-5-447 VO 7 IS 5 A1 Simon R Johnson YR 2007 UL http://www.rcpjournals.org/content/7/5/447.abstract AB