Preprint Case Report Version 1 This version is not peer-reviewed Version 1 : Received: 31 July 2024 / Approved: 2 August 2024 / Online: 2 August 2024 (03:55:46 CEST) Tragiannidis, A.; Antari, V.; Tsotridou, E.; Sidiropoulos, T.; Kaisari, A.; Palabougiouki, M.; Vyzantiadis, T.-A.; Hatzipantelis, E.; Tsinopoulou, A.-G.; Goussetis, E. Complete Remission with Inotuzumab Ozogamicin as Fourth-Line Salvage Therapy in a Child with Relapsed/Refractory Acute Lymphoblastic Leukemia.