Allergen immunotherapy: a new semantic framework from the European Academy of Allergy and Clinical Immunology/American Academy of Allergy, Asthma and Immunology/PRACTALL Consensus Report. Issue 7 (7th June 2013) - Calderón, M. A.; Casale, T.; Cox, L.; Akdis, C. A.; W. Burks, A.; Nelson, H. S.; Jutel, M.; Demoly, P.