Emicizumab assays evaluations with four different reagents in severe haemophilia A patients: Concentration from baseline to maintenance therapy. Issue 1 (29th November 2022) - Launois, Amélie; De Raucourt, Emmanuelle; Martin‐Toutain, Isabelle; Samdjee, Farahna; Le Dore, Sophie; Ferre, Emmanuelle; Flaujac, Claire