Rivaroxaban in Patients with Atrial Fibrillation and a Bioprosthetic Mitral Valve. - Guimarães HP; Lopes RD; de Barros E Silva PGM; Liporace IL; Sampaio RO; Tarasoutchi F; Hoffmann-Filho CR; de Lemos Soares Patriota R; Leiria TLL; Lamprea D; Precoma DB; Atik FA; et al. (The New England journal of medicine, 2020)