Arrhythmias and sudden death Non-vitamin K antagonist oral anticoagulants, proton pump inhibitors and gastrointestinal bleeds http://orcid.org/0000-0002-5471-3132Joris Komen1,2, Anton Pottegård3, Paul Hjemdahl4, Aukje K Mantel-Teeuwisse1, Björn Wettermark5, Maja Hellfritzsch3, J Hallas3, Ron Herings6, Lisa Smits6, Thomas Forslund4, Olaf Klungel1 1 Clinical Pharmacology and Pharmacoepidemiology, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands 2...