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.
Hasse LA, Ritchey PN, Smith R.Hasse LA, et al. Among authors: smith r.Headache. 2002 Sep;42(8):738-46. doi: 10.1046/j.1526-4610.2002.02175.x.Headache. 2002.PMID: 12390636
Hasse LA, Ritchey PN, Smith R.Hasse LA, et al. Among authors: smith r.Headache. 2004 Oct;44(9):873-84. doi: 10.1111/j.1526-4610.2004.04169.x.Headache. 2004.PMID: 15447696
Gillette RD, Black DJ, Romaniuk M, Smith R.Gillette RD, et al. Among authors: smith r.J Fam Pract. 1986 Nov;23(5):431-3, 436-8.J Fam Pract. 1986.PMID: 3772316No abstract available.
Luick M, Bandy LK, Harrington R, Vijayan J, Adams J, Cummins S, Rayner M, Rogers N, Rutter H, Smith R, White M, Scarborough P.Luick M, et al. Among authors: smith r.PLoS One. 2024 Jun 6;19(6):e0301890. doi: 10.1371/journal.pone.0301890. eCollection 2024.PLoS One. 2024.PMID: 38843248