RT Journal Article SR Electronic T1 Sickle cell disease JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 441 OP 446 DO 10.7861/clinmedicine.1-6-441 VO 1 IS 6 A1 Anne Yardumian A1 Charles Crawley YR 2001 UL http://www.rcpjournals.org/content/1/6/441.abstract AB