@article{Krokstad2013,
author = {Krokstad, S. and Langhammer, A. and Romundstad, P. and Heggland, J. and Holmen, J.},
title= {Cohort Profile: The HUNT Study, Norway},
year = {2013},
doi = {10.1093/ije/dys095},
volume = {42},
number = {4},
pages = {968--977},
}