The first practice parameters published on amyotrophic lateral sclerosis (ALS) by the American Academy of Neurology (AAN) enhanced the care of people with this condition. These guidelines have now been updated on the basis of new evidence and will continue to provide the impetus for new research and better care; however, harmonization of the AAN and European guidelines is desirable.
- P. Nigel Leigh
- Lokesh C. Wijesekera
