Quality of life of healthy children with a chronically ill sibling: the role of clinical factors and importance of psychosocial support programs in pediatric care - Wawdejuk, Joanna; Chrostowska, Alicja; Gliszczyńska, Monika; Ośko, Karolina; Miniszewska, Joanna; Tkaczyk, Marcin (Pediatria Polska - Polish Journal of Paediatrics, 2026)