@article{Davis2001,
author = {Davis, B.A. and Heathcote, C.R. and O’Neill, T.J.},
title= {Estimating cohort health expectancies from cross-sectional surveys of disability},
year = {2001},
doi = {10.1002/sim.724},
journal = {Statistics in Medicine},
volume = {20},
pages = {1097--1111},
}