Pathogenetic aspects of chronic urticaria. Retrospective and prospective analysis of the patients of the Department of Dermatology, Poznan University of Medical Sciences - Jenerowicz, Dorota; Błaszczyk, Anna; Raciborski, Filip; Sadowska-Przytocka, Anna; Adamski, Zygmunt; Czarnecka-Operacz, Magdalena (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2022)