Short-term effects of air pollution on exacerbations of allergic asthma in Užice region, Serbia - Kovačević, Gordana; Tomić-Spirić, Vesna; Marinković, Jelena; Janković, Slavenka; Ćirković, Andja; Djerić, Ana; Erić, Miloš; Janković, Janko (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2020)