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.
Haleem A, Khan MK, Sufia S, Chaudhry S, Siddiqui MI, Khan AA.Haleem A, et al. Among authors: khan mk, khan aa.BMC Public Health. 2016 Jan 4;16:2. doi: 10.1186/s12889-015-2676-3.BMC Public Health. 2016.PMID: 26728002Free PMC article.Clinical Trial.
Haleem A, Siddiqui MI, Khan AA.Haleem A, et al. Among authors: khan aa.Int J Health Sci (Qassim). 2012 Jun;6(2):174-84. doi: 10.12816/0005992.Int J Health Sci (Qassim). 2012.PMID: 23580896Free PMC article.
Chaudhry S, Iqbal HA, Khan AA, Izhar M, Butt AK, Akhter MW, Izhar F, Mirza KM.Chaudhry S, et al. Among authors: khan aa.J Pak Med Assoc. 2008 Jun;58(6):331-4.J Pak Med Assoc. 2008.PMID: 18988394