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.
Frerichs RR, Becht JN, Foxman B.Frerichs RR, et al.Bull Pan Am Health Organ. 1980;14(4):343-55.Bull Pan Am Health Organ. 1980.PMID: 7236935No abstract available.
Aneshensel CS, Frerichs RR, Clark VA, Yokopenic PA.Aneshensel CS, et al. Among authors: frerichs rr.Am J Public Health. 1982 Sep;72(9):1017-21. doi: 10.2105/ajph.72.9.1017.Am J Public Health. 1982.PMID: 7102850Free PMC article.Clinical Trial.
Frerichs RR, Aneshensel CS, Clark VA, Yokopenic P.Frerichs RR, et al.Am J Public Health. 1981 Jun;71(6):637-40. doi: 10.2105/ajph.71.6.637.Am J Public Health. 1981.PMID: 7235104Free PMC article.