Welcome to the World Allergy Forum Symposium and Introduction to "Sublingual Immunotherapy – Is There a Role?"
Michael A. Kaliner, Institute for Asthma and Allergy, Wheaton, Maryland, U.S.A.

An Analysis of Long-Term Efficacy and Safety of Sublingual Immunotherapy: Criteria for Appropriate Patient Selection
G. Walter Canonica, University of Genova DIMI, Genova, Italy

Mechanisms of Sublingual Immunotherapy – How does it Differ from Injection Immunotherapy?
Anthony J. Frew, Brighton General Hospital, Brighton, United Kingdom

Is the US Ready for Sublingual Immunotherapy?
Linda Cox, Allergy & Asthma Center, Fort Lauderdale, Florida, U.S.A.