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.
Martin CR, Johnson CS, Cobb C, Tatter D, Haywood LJ.Martin CR, et al. Among authors: haywood lj.J Natl Med Assoc. 1996 Jul;88(7):428-32.J Natl Med Assoc. 1996.PMID: 8764524Free PMC article.
Norris S, Johnson CS, Haywood LJ.Norris S, et al. Among authors: haywood lj.J Natl Med Assoc. 1991 Mar;83(3):209-13.J Natl Med Assoc. 1991.PMID: 2038080Free PMC article.
Holloman KL, Johnson CS, Haywood LJ.Holloman KL, et al. Among authors: haywood lj.J Natl Med Assoc. 1987 Aug;79(8):809-14.J Natl Med Assoc. 1987.PMID: 3508215Free PMC article.
Norris SL, Johnson C, Haywood LJ.Norris SL, et al. Among authors: haywood lj.J Assoc Acad Minor Phys. 1992;3(1):20-3.J Assoc Acad Minor Phys. 1992.PMID: 1576456