An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Freedman VA, Conrad F, Cornman J, Schwarz N, Stafford F.Freedman VA, et al. Among authors: schwarz n.J Happiness Stud. 2014 Jun 1;15(3):639-655. doi: 10.1007/s10902-013-9440-0.J Happiness Stud. 2014.PMID: 25110460Free PMC article.
Carr D, Freedman VA, Cornman JC, Schwarz N.Carr D, et al. Among authors: schwarz n.J Marriage Fam. 2014 Oct 1;76(5):930-948. doi: 10.1111/jomf.12133.J Marriage Fam. 2014.PMID: 25221351Free PMC article.
Freedman VA, Stafford F, Schwarz N, Conrad F.Freedman VA, et al. Among authors: schwarz n.Field methods. 2013 Nov 1;25(4):10.1177/1525822X12467142. doi: 10.1177/1525822X12467142.Field methods. 2013.PMID: 24319346Free PMC article.