Glutathione‐s‐transferase is a minor allergen in birch pollen because of restricted release from hydrated pollen grains. (17th March 2014) - Deifl, Stephan; Zwicker, Christian; Vejvar, Eva; Kitzmüller, Claudia; Gadermaier, Gabriele; Nagl, Birgit; Vrtala, Susanne; Zlabinger, Gerhard; Briza, Peter; Ferreira, Fatima; Bohle, Barbara