Barcella, L.; Ambaglio, C.; Gritti, P.; Schieppati, F.; Brusegan, V.; Sanga, E.; Marchetti, M.; Lorini, L.; Falanga, A. Long-Term Persistence of High Anti-PF4 Antibodies Titer in a Challenging Case of AZD1222 Vaccine-Induced Thrombotic Thrombocytopenia. Bleed Thromb Vascul Biol 2023, 2.