Stability of Rivaroxaban and Apixaban Anti-Xa Activities in Whole Blood Samples: A French Bicentric Study - Raynor, Alexandre; Lunte, Klara; Gaaloul, Mayssa; Caillault, Amandine; Zouiti, Fouzia; Desconclois, Céline; Planche, Virginie (Thrombosis and Haemostasis, 2023)