United States. Agency for Toxic Substances and Disease Registry.

The National ALS Registry will help give a better picture of who gets ALS and risk factors for the disease. It will also help researchers get better information on the number of people with ALS. You can join if you have ALS and are a citi¬zen or legal resident of the U.S. It only takes about 5 minutes. 217101-A

Poster

Stephen B. Thacker CDC Library collection