Stimulation of an immune system by different types of allergens causes seasonal (late spring and summer) factors to increase probability of allergic rhinitis symptoms. The Epidemiology of Allergic Diseases in Poland (ECAP) survey: part two - Namysłowski, Andrzej; Lipiec, Agnieszka; Zieliński, Wojciech; Raciborski, Filip; Tomaszewska, Aneta; Walkiewicz, Artur; Samel-Kowalik, Piotr; Wojas, Oksana; Piekarska, Barbara; Samoliński, Bolesław (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2021)