@inbook{5010050, author={Michael Bailin and Spiro Spanakis}, title={Thromboprophylaxis for venous thromboembolism (VTE)}, booktitle={Guidelines}, publisher={The McGraw-Hill Companies, Inc.}, address={New York, NY}, year={2000}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=5010050} }