1 Bergmann K. C. et al. First evaluation of a symbiotic food supplement in an allergen exposure chamber in birch pollen allergic patients //World Allergy Organization Journal. – 2021. Vol. 14. №. 1. P. 100494.2 Ibid. P. 100494.3 Nogueira J. C. R., Gonçalves M. C. R. Probiotics in allergic rhinitis //Brazilian Journal of otorhinolaryngology. – 2011. Vol. 77. №. 1. P 129-134.4 Kramer M. F., Heath M. D. Probiotics in the treatment of chronic rhinoconjunctivitis and chronic rhinosinusitis //Journal of allergy. 2014. Vol. 2014.P-1-7.2021-04-06 14:56