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.
Watkins WM, Percy M, Crampton JM, Ward S, Koech D, Howells RE.Watkins WM, et al. Among authors: howells re.Trans R Soc Trop Med Hyg. 1988;82(1):21-6. doi: 10.1016/0035-9203(88)90250-7.Trans R Soc Trop Med Hyg. 1988.PMID: 3051545Review.
Watkins WM, Brandling-Bennett AD, Nevill CG, Carter JY, Boriga DA, Howells RE, Koech DK.Watkins WM, et al. Among authors: howells re.Trans R Soc Trop Med Hyg. 1988;82(3):398-403. doi: 10.1016/0035-9203(88)90133-2.Trans R Soc Trop Med Hyg. 1988.PMID: 3068855Clinical Trial.
Gershon P, Howells RE.Gershon P, et al. Among authors: howells re.Trans R Soc Trop Med Hyg. 1986;80(5):753-7. doi: 10.1016/0035-9203(86)90376-7.Trans R Soc Trop Med Hyg. 1986.PMID: 3299891
Ndifor AM, Howells RE, Ward SA.Ndifor AM, et al. Among authors: howells re.Trans R Soc Trop Med Hyg. 1992 May-Jun;86(3):229-30. doi: 10.1016/0035-9203(92)90284-j.Trans R Soc Trop Med Hyg. 1992.PMID: 1412637
Boulter MK, Bray PG, Howells RE, Ward SA.Boulter MK, et al. Among authors: howells re.Trans R Soc Trop Med Hyg. 1993 May-Jun;87(3):303. doi: 10.1016/0035-9203(93)90137-f.Trans R Soc Trop Med Hyg. 1993.PMID: 8236399No abstract available.