Bellin, Annachiara New oral anti-coagulants versus vitamin K antagonists in high thromboembolic risk patients. [electronic resource] - PloS one 2019 - e0222762 p. digital Publication Type: Comparative Study; Journal Article; Observational Study ISSN: 1932-6203 Standard No.: 10.1371/journal.pone.0222762 doi Subjects--Topical Terms: Administration, OralAgedAnticoagulants--administration & dosageAtrial Fibrillation--drug therapyCosts and Cost AnalysisFemaleFollow-Up StudiesHumansMaleRisk FactorsThromboembolism--drug therapyTreatment OutcomeVitamin K--antagonists & inhibitors