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.
van Lettow M, Fawzi WW, Semba RD.van Lettow M, et al. Among authors: semba rd.Nutr Rev. 2003 Mar;61(3):81-90. doi: 10.1301/nr.2003.marr.81-90.Nutr Rev. 2003.PMID: 12723640Review.
van Lettow M, Harries AD, Kumwenda JJ, Zijlstra EE, Clark TD, Taha TE, Semba RD.van Lettow M, et al. Among authors: semba rd.BMC Infect Dis. 2004 Dec 21;4(1):61. doi: 10.1186/1471-2334-4-61.BMC Infect Dis. 2004.PMID: 15613232Free PMC article.
Semba RD, Kalm LM, de Pee S, Ricks MO, Sari M, Bloem MW.Semba RD, et al.Public Health Nutr. 2007 Jan;10(1):7-15. doi: 10.1017/S136898000722292X.Public Health Nutr. 2007.PMID: 17212837