@article{5b243c22f0544874b5a754680e981063,
title = "Social relations in older adults: Secular trends and longitudinal changes over a 16-year follow-up",
keywords = "cohort study, kohorttitutkimus, longitudinal study, pitkitt{\"a}istutkimus, social relationships, sosiaaliset suhteet, cohort study, kohorttitutkimus, longitudinal study, pitkitt{\"a}istutkimus, social relationships, sosiaaliset suhteet",
author = "T-M Lyyra and A-L Lyyra and K Lumme-Sandt and P Tiikkainen and R-L Heikkinen",
year = "2010",
doi = "10.1016/j.archger.2010.05.018",
language = "English",
volume = "51",
pages = "e133--e138",
journal = "ARCHIVES OF GERONTOLOGY AND GERIATRICS",
issn = "0167-4943",
publisher = "Elsevier Ireland Ltd",
number = "3",
}