@article{Izmirlian2000,
author = {Izmirlian, G. and Brock, D. and Ferrucci, L. and Phillips, C.},
title= {Active Life Expectancy from Annual Follow-Up Data with Missing Responses},
year = {2000},
doi = {10.1111/j.0006-341X.2000.00244.x},
journal = {Biometrics},
volume = {56},
number = {1},
pages = {244--248},
}