@article{Kempen1996,
author = {Kempen, G.I.J.M. and Steverink, N. and Ormel, J. and Deeg, D.J.H.},
title= {The assessment of ADL among frail elderly in an interview survey: Self-report versus performance-based tests and determinants of discrepancies},
year = {1996},
doi = {10.1093/geronb/51B.5.P254},
journal = {Journal of Gerontology: Psychological Sciences },
volume = {51B},
number = {5},
pages = {254--260},
}