@article{Cai2008,
author = {Cai, L. and Schenker, N. and Lubitz, J. and Diehr, P. and Arnold, A. and Fried, L.P. },
title= {Evaluation of a method for fitting a semi-Markov process model in the presence of left-censored spells using the Cardiovascular Health Study},
year = {2008},
doi = {10.1002/sim.3382},
journal = {Statistics in Medicine},
volume = {27},
number = {26},
pages = {5509--5524},
}