Efficacy and safety of fostamatinib in refractory immune thrombocytopenia: a meta-analysis from randomized controlled trials - Tungjitviboonkun, Songphol; Bumrungratanayos, Naharuthai; Jitwimungsanon, Jedsadakorn; Kheamakulvanich, Thanat; Siramongkholkarn, Smuch (Annals of Hematology, 2024)