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.
French JB Jr, Schell WL, Kazmierczak JJ, Davis JP.French JB Jr, et al. Among authors: schell wl.J Med Entomol. 1992 Sep;29(5):723-8. doi: 10.1093/jmedent/29.5.723.J Med Entomol. 1992.PMID: 1404249
Band JD, LaVenture M, Davis JP, Mallison GF, Skaliy P, Hayes PS, Schell WL, Weiss H, Greenberg DJ, Fraser DW.Band JD, et al. Among authors: schell wl.JAMA. 1981 Jun 19;245(23):2404-7.JAMA. 1981.PMID: 7230470