Erratum: Vol. 66, No. 50

In the report “CDC Grand Rounds: National Amyotrophic Lateral Sclerosis (ALS) Registry Impact, Challenges, and Future Directions,” on page 1382, the list of author affiliations should have read as follows:

¹Environmental Health and Surveillance Branch, Division of Toxicology and Human Health Sciences, Agency for Toxic Substances and Disease Registry, CDC; ²Cynthia Shaw Crispen Chair, ALS Research, Department of Neurology, Lexington, University of Kentucky; ³person living with ALS; ⁴Office of the Associate Director for Science, CDC; ⁵Office of the Associate Director for Communication, CDC.