@article{Frisch2013,
author = {Frisch, M. and Simonsen, J.},
title= {Marriage, cohabitation and mortality in Denmark: National cohort study of 6.5 million persons followed for up to three decades (1982–2011)},
year = {2013},
doi = {10.1093/ije/dyt024},
volume = {42},
number = {2},
pages = {559--578},
}