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.
Khalifa N, Allen PF, Abu-bakr NH, Abdel-Rahman ME, Abdelghafar KO.Khalifa N, et al. Among authors: allen pf.BMC Oral Health. 2012 Feb 24;12:5. doi: 10.1186/1472-6831-12-5.BMC Oral Health. 2012.PMID: 22364514Free PMC article.
Khalifa N, Allen PF, Abu-bakr NH, Abdel-Rahman ME.Khalifa N, et al. Among authors: allen pf.J Oral Sci. 2012;54(4):303-12. doi: 10.2334/josnusd.54.303.J Oral Sci. 2012.PMID: 23221155Free article.
Khalifa N, Allen PF, Abu-bakr NH, Abdel-Rahman ME.Khalifa N, et al. Among authors: allen pf.J Oral Sci. 2013;55(2):123-32. doi: 10.2334/josnusd.55.123.J Oral Sci. 2013.PMID: 23748451Free article.
Khalifa N, Allen PF, Abu-bakr NH, Abdel-Rahman ME.Khalifa N, et al. Among authors: allen pf.J Oral Sci. 2013;55(4):349-57. doi: 10.2334/josnusd.55.349.J Oral Sci. 2013.PMID: 24351924Free article.
Mittal R, Tan KS, Wong ML, Allen PF.Mittal R, et al. Among authors: allen pf.BMC Oral Health. 2021 Feb 4;21(1):47. doi: 10.1186/s12903-021-01408-3.BMC Oral Health. 2021.PMID: 33541321Free PMC article.
Allen PF.Allen PF.Health Qual Life Outcomes. 2003 Sep 8;1:40. doi: 10.1186/1477-7525-1-40.Health Qual Life Outcomes. 2003.PMID: 14514355Free PMC article.Review.
Locker D, Allen PF.Locker D, et al. Among authors: allen pf.J Public Health Dent. 2002 Winter;62(1):13-20. doi: 10.1111/j.1752-7325.2002.tb03415.x.J Public Health Dent. 2002.PMID: 14700084