This second issue of Current Therapy in Allergy and Immunology includes new authors and perspectives. New chapters are included on metabisulfite sensitivity, congenital humoral and cellular immunodeficiency states, hyper Ig E syndrome, dermatitis herpetiformis, progressive systemic sclerosis, autoallergic diseases of the external eye, Takayasu's arteritis, mixed connective tissue disease and allergic bronchopulmonary aspergillosis. The book may be...