The clinical course of varicella and herpes zoster in children with inflammatory bowel disease – a prospective study - Chazan, Magdalena; Talarek, Ewa; Kowalska-Duplaga, Kinga; Bąk-Drabik, Katarzyna Kamila; Szczepanik, Mariusz; Więcek, Sabina; Banasiuk, Marcin; Radzikowski, Andrzej; Banaszkiewicz, Aleksandra (Pediatria Polska - Polish Journal of Paediatrics, 2025)