RT Journal Article SR Electronic T1 Clinical Management of Urticaria and Anaphylaxis JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 872 OP 872 DO 10.1136/thx.48.8.872 VO 48 IS 8 A1 GS YR 1993 UL http://thorax.bmj.com/content/48/8/872.1.abstract AB