@inbook{1170881041, author={Michael R. Cassidy and David McAneny}, editor={Doherty, Gerard M.}, title={Preoperative Preparation}, booktitle={Current Diagnosis & Treatment: Surgery, 15e}, publisher={McGraw Hill}, address={New York, NY}, year={2020}, url={accessmedicine.mhmedical.com/content.aspx?aid=1170881041} }