@article{Geskus2011,
author = {Geskus, R.B.},
title= {Cause-specific cumulative incidence estimation and the Fine and Gray model under both left truncation and right censoring},
year = {2011},
doi = {10.1111/j.1541-0420.2010.01420.x},
journal = {Biometrics},
volume = {67},
number = {1},
pages = {39--49},
}