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.
Katz BP, Freund DA, Heck DA, Dittus RS, Paul JE, Wright J, Coyte P, Holleman E, Hawker G.Katz BP, et al. Among authors: freund da.Health Serv Res. 1996 Jun;31(2):125-40.Health Serv Res. 1996.PMID: 8675435Free PMC article.
Heck DA, Melfi CA, Mamlin LA, Katz BP, Arthur DS, Dittus RS, Freund DA.Heck DA, et al. Among authors: freund da.Med Care. 1998 May;36(5):661-9. doi: 10.1097/00005650-199805000-00006.Med Care. 1998.PMID: 9596057
Freund DA, Dittus RS.Freund DA, et al.Pharmacoeconomics. 1992 Jan;1(1):20-31. doi: 10.2165/00019053-199201010-00006.Pharmacoeconomics. 1992.PMID: 10147037
Freund DA, Dittus RS.Freund DA, et al.J Natl Cancer Inst Monogr. 1995;(19):37-40.J Natl Cancer Inst Monogr. 1995.PMID: 7577203Clinical Trial.No abstract available.