@article{WahnBachertHeinrichetal.2018,
  author    = {Ulrich Wahn and Claus Bachert and Joachim Heinrich and Hartmut Richter and Stefan Zielen},
  title     = {Real-world benefits of allergen immunotherapy for birch pollen-associated allergic rhinitis and asthma},
  journal   = {Allergy},
  volume    = {74},
  pages     = {594 -- 604},
  doi       = {10.1111/all.13598},
  year      = {2018},
}