Heterogeneity after harmonisation: A retrospective cohort study of bleeding and stroke risk after the introduction of direct oral anticoagulants in four Western European countries

• Joris J. KomenUtrecht University
• Nicholas B. HuntUtrecht University
• Anton PottegårdUniversity of Southern Denmark
• Paul HjemdahlKarolinska University Hospital
• Björn WettermarkUppsala University
• Morten Salling OlesenUniversity of Southern Denmark
• Marion BennieUniversity of Strathclyde
• Tanja MuellerUniversity of Strathclyde
• Raymond CarragherQueen's University Belfast
• Øystein KarlstadNorwegian Institute of Public Health
• Lars Jøran KjerpesethNorwegian Institute of Public Health
• Olaf H. KlungelUniversity of Southern Denmark
• Tomas ForslundRegion Stockholm