@article{Ormstad2020a,
author = "Ormstad, H., Eilertsen, G., Heir, T. et al.",
title = "Personality traits and the risk of becoming lonely in old age: A 5-year follow-up study",
year = 2020,
journal = "Health Qual Life Outcomes ",
volume = 18,
number = 47,
url = "https://doi.org/10.1186/s12955-020-01303-5"
}