@inbook{1182988705, author={Davy Lau and Alex Chan}, title={Impact of frailty on clinical outcomes and resource use following emergency general surgery in the United States}, booktitle={2 Minute Medicine}, publisher={McGraw Hill}, address={New York, NY}, year={2015}, url={accesssurgery.mhmedical.com/updatesContent.aspx?gbosid=568549} }