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.
Nord E, Menzel P, Richardson J.Nord E, et al. Among authors: richardson j.Health Econ. 2003 Oct;12(10):873-7. doi: 10.1002/hec.838.Health Econ. 2003.PMID: 14508871
Nord E, Pinto JL, Richardson J, Menzel P, Ubel P.Nord E, et al. Among authors: richardson j.Health Econ. 1999 Feb;8(1):25-39. doi: 10.1002/(sici)1099-1050(199902)8:1<25::aid-hec398>3.0.co;2-h.Health Econ. 1999.PMID: 10082141
Nord E, Menzel P, Richardson J.Nord E, et al. Among authors: richardson j.Health Econ. 2006 Feb;15(2):215-8. doi: 10.1002/hec.1063.Health Econ. 2006.PMID: 16389641