@article{Gran2015,
author = {Gran, J.M. and Lie, S.A. and Øyeflaten, I. and Borgan, Ø. and Aalen, O.O.},
title= {Causal inference in multi-state models: Sickness absence and work for 1145 participants after work rehabilitation},
year = {2015},
doi = {10.1186/s12889-015-2408-8},
volume = {15},
number = {108},
pages = {1‒16},
}