@inbook{5119216,
author={Linda P. Fried and Jeremy D. Walston and Luigi Ferrucci},
editor={Halter, Jeffrey B. and Ouslander, Joseph G. and Tinetti, Mary E. and Studenski, Stephanie and High, Kevin P. and Asthana, Sanjay},
title={Chapter 52. Frailty},
booktitle={Hazzard's Geriatric Medicine and Gerontology, 6e},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2009},
url={accessmedicine.mhmedical.com/content.aspx?aid=5119216}
}