@inbook{1143144410, author={O. John Ma}, editor={Cydulka, Rita K. and Fitch, Michael T. and Joing, Scott A. and Wang, Vincent J. and Cline, David M. and Ma, O. John}, title={Trauma in the Elderly}, booktitle={Tintinalli's Emergency Medicine Manual, 8e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2017}, url={accessemergencymedicine.mhmedical.com/content.aspx?aid=1143144410} }