@inbook{1181019766, author={Jack Lennon and Alex Chan}, title={Significant number of patients being treated with aspirin in addition to direct oral anticoagulant without clear indication}, booktitle={2 Minute Medicine}, publisher={McGraw Hill}, address={New York, NY}, year={2015}, url={accesscardiology.mhmedical.com/updatesContent.aspx?gbosid=556755} }