@inbook{1107196311, author={Nirmala R. Abraham and Cathy D. Trame and Sudhir Diwan}, editor={Diwan, Sudhir and Staats, Peter S.}, title={Anticoagulation Guidelines}, booktitle={Atlas of Pain Medicine Procedures}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1107196311} }