• What is the Best Evaluation for Chronic Angioedema and Urticaria? 

    Gupta, Vikram; Levine, Jeffrey P. (Family Physicians Inquiries Network, 2008-09)
    A good history is the most helpful step in establishing the etiology of chronic urticaria (recurrent bouts over 6 weeks' duration); extensive laboratory studies add little information. (SOR B, based on a prospective study.) ...