@article{Medford2019,
author = {Medford, A. and Christensen, K. and Skytthe, A. and Vaupel, J.W.},
title= {A cohort comparison of lifespan after age 100 in Denmark and Sweden: Are only the oldest getting older?},
year = {2019},
doi = {10.1007/s13524-018-0755-7},
volume = {56},
number = {2},
pages = {665--677},
}