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.
Yang Q, Khoury MJ, Friedman JM, Flanders WD.Yang Q, et al.Epidemiology. 2003 Mar;14(2):161-7. doi: 10.1097/01.EDE.0000040256.22618.12.Epidemiology. 2003.PMID: 12606881
Flanders WD, Khoury MJ, Yang QH, Austin H.Flanders WD, et al. Among authors: yang qh.Stat Med. 2005 Aug 15;24(15):2299-316. doi: 10.1002/sim.2156.Stat Med. 2005.PMID: 16015677
Yang Q, Greenland S, Flanders WD.Yang Q, et al.Am J Public Health. 2006 May;96(5):856-61. doi: 10.2105/AJPH.2004.049312. Epub 2006 Mar 29.Am J Public Health. 2006.PMID: 16571716Free PMC article.
Yang Q, Cogswell ME, Hamner HC, Carriquiry A, Bailey LB, Pfeiffer CM, Berry RJ.Yang Q, et al.Am J Clin Nutr. 2010 Jan;91(1):64-72. doi: 10.3945/ajcn.2009.28401. Epub 2009 Oct 14.Am J Clin Nutr. 2010.PMID: 19828716Free article.