Intranasal administration of probiotic Lactobacillus rhamnosus GG prevents birch pollen‐induced allergic asthma in a murine model. - Spacova, I.; Petrova, M. I.; Fremau, A.; Pollaris, L.; Vanoirbeek, J.; Ceuppens, J. L.; Seys, S.; Lebeer, S. (Allergy, 2019)