Worm, M., Rak, S., Samoliński, B., Antila, J., Höiby, A., Kruse, B., . . . Valovirta, E. (2019). Efficacy and safety of birch pollen allergoid subcutaneous immunotherapy: A 2‐year double‐blind, placebo‐controlled, randomized trial plus 1‐year open‐label extension. Clin Exp Allergy.

Worm, Margitta, Sabina Rak, Boleslaw Samoliński, Jukka Antila, Ann‐Sofi Höiby, Brigitte Kruse, Agnieszka Lipiec, Michael Rudert, and Erkka Valovirta. "Efficacy and Safety of Birch Pollen Allergoid Subcutaneous Immunotherapy: A 2‐year Double‐blind, Placebo‐controlled, Randomized Trial Plus 1‐year Open‐label Extension." Clin Exp Allergy 2019.

Worm, Margitta, et al. "Efficacy and Safety of Birch Pollen Allergoid Subcutaneous Immunotherapy: A 2‐year Double‐blind, Placebo‐controlled, Randomized Trial Plus 1‐year Open‐label Extension." Clin Exp Allergy 2019.