RT Journal Article SR Electronic T1 The urticarias: pathophysiology and management JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 164 OP 167 DO 10.7861/clinmedicine.12-2-164 VO 12 IS 2 A1 Clive Grattan YR 2012 UL http://www.rcpjournals.org/content/12/2/164.abstract