Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

Sign Up for a Free Account For information on discounts, see Plans & Pricing

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Directions on use of a respirator in case of chemical weapon attack issued to the British public during World War II

(Source: Chart of war gases. Issued by the Ministry of Home Security. London: H.M. Stationary Office, 1942. Courtesy of the Wellcome Library, London, UK. Reference number: b15316890. Public domain.)

Related Article

Related Media