@article{Katz1963,
author = {Katz, S. and Ford, A.B. and Moskowitz, R.W. and Jackson, B.A. and Jaffe, M.W.},
title= {Studies of illness in the aged: The index of adl: a standardized measure of biological and psychosocial function},
year = {1963},
doi = {10.1001/jama.1963.03060120024016},
journal = {JAMA},
volume = {185},
number = {12},
pages = {914--919},
}