RT Journal Article SR Electronic T1 Autoimmune haematological disorders JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 447 OP 451 DO 10.7861/clinmedicine.1-6-447 VO 1 IS 6 A1 Drew Provan YR 2001 UL http://www.rcpjournals.org/content/1/6/447.abstract AB