@inbook{1164319030, author={Kelly R. Haisley and John G. Hunter}, editor={Brunicardi, F. Charles and Andersen, Dana K. and Billiar, Timothy R. and Dunn, David L. and Kao, Lillian S. and Hunter, John G. and Matthews, Jeffrey B. and Pollock, Raphael E.}, title={Gallbladder and the Extrahepatic Biliary System}, booktitle={Schwartz's Principles of Surgery, 11e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2019}, url={accesssurgery.mhmedical.com/content.aspx?aid=1164319030} }