Efficacy of siltuximab in the treatment of idiopathic multicentric castleman disease, the first Polish, real-world experience with long-term observation. Issue 12 (15th October 2021) - Ostrowska, Beata; Szymczyk, Agnieszka; Olszewska-Szopa, Magdalena; Romejko-Jarosińska, Joanna; Domańska-Czyż, Katarzyna; Dąbrowska-Iwanicka, Anna; Tomczak, Waldemar; Rybski, Sebastian; Hus, Marek; Wróbel, Tomasz; Walewski, Jan