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.
Zhang X, Ra CK, Zhang D, Zhang Y, MacLeod KE.Zhang X, et al. Among authors: ra ck.Calif J Health Promot. 2016;14(2):56-67.Calif J Health Promot. 2016.PMID: 27708555Free PMC article.
Ra CK, Cho J, Stone MD, De La Cerda J, Goldenson NI, Moroney E, Tung I, Lee SS, Leventhal AM.Ra CK, et al.JAMA. 2018 Jul 17;320(3):255-263. doi: 10.1001/jama.2018.8931.JAMA. 2018.PMID: 30027248Free PMC article.
Ra CK, Cho Y, Hummer RA.Ra CK, et al.J Immigr Minor Health. 2013 Jun;15(3):510-6. doi: 10.1007/s10903-012-9723-2.J Immigr Minor Health. 2013.PMID: 23054540
Ra CK, Pehlivan N, Kim H, Sussman S, Unger JB, Businelle MS.Ra CK, et al.Prev Med Rep. 2022 Oct 28;30:102035. doi: 10.1016/j.pmedr.2022.102035. eCollection 2022 Dec.Prev Med Rep. 2022.PMID: 36531113Free PMC article.