Prothrombinase-Induced Clotting Time to Measure Drug Concentrations of Rivaroxaban, Apixaban, and Edoxaban in Clinical Practice: A Cross-Sectional Study oleh Vepusha Sathanantham, Lorenzo Alberio, Cédric Bovet, Pierre Fontana, Bernhard Gerber, Lukas Graf, Adriana Mendez, Thomas C. Sauter, Adrian Schmidt, Jan-Dirk Studt, Walter A. Wuillemin, Michael Nagler