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. 2022 Mar 17;9:817826. doi: 10.3389/fcvm.2022.817826

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Copyright © 2022 Meihandoest, Studt, Mendez, Alberio, Fontana, Wuillemin, Schmidt, Graf, Gerber, Amstutz, Bovet, Sauter, Asmis and Nagler.

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Flow of the patients. A prospective, multicentre cross-sectional study was conducted to test the accuracy of a heparin-calibrated anti-Xa assay for the measurement of rivaroxaban, apixaban, or edoxaban plasma levels in clinical practice.