Diagnosis and treatment of hypersensitivity pneumonitis: S2k guideline of the German Respiratory Society and the German Society for Allergology and Clinical Immunology - Koschel, Dirk; Behr, Jürgen; Berger, Melanie; Bonella, Francesco; Hamer, Okka; Joest, Marcus; Jonigk, Danny David; Kreuter, Michael; Leuschner, Gabriela; Nowak, Dennis; Raulf, Monika; Rehbock, Beate; et al. (Respiration, 2025)