@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},
journal = {Journal of the American Medical Association},
pages = {94--99},
}