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.
Sangwan A, Prinja S, Aggarwal S, Jagnoor J, Bahuguna P, Ivers R.Sangwan A, et al.Appl Health Econ Health Policy. 2017 Oct;15(5):681-692. doi: 10.1007/s40258-017-0329-7.Appl Health Econ Health Policy. 2017.PMID: 28409489
Le A, Lelli DA, Van Katwyk S, Hogan D, Thavorn K, Tse D.Le A, et al.J Otolaryngol Head Neck Surg. 2019 Jan 16;48(1):5. doi: 10.1186/s40463-019-0328-9.J Otolaryngol Head Neck Surg. 2019.PMID: 30651134Free PMC article.
Guo X, Yao D, Liu J, Huang Y, Wang Y, Yao W.Guo X, et al.BMC Health Serv Res. 2020 Jun 8;20(1):518. doi: 10.1186/s12913-020-05371-7.BMC Health Serv Res. 2020.PMID: 32513167Free PMC article.
Li M, Cao M, Sun J, Jiang Y, Liu Y.Li M, et al.Hum Resour Health. 2020 Apr 28;18(1):31. doi: 10.1186/s12960-020-00473-z.Hum Resour Health. 2020.PMID: 32345325Free PMC article.