1. Amyotrophic Lateral Sclerosis: An Update for 2018
Björn Oskarsson, MD, Tania F. Gendron, PhD, Nathan P. Staff, MD, PhD 
Mayo Clinic Proceedings 
Volume 93, Issue 11, Pages (November 2018)
DOI: /j.mayocp
Copyright © 2018 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Figure 1
The primary motor system showing connections among upper motor neurons, lower motor neurons, and the muscle effector organ.
Mayo Clinic Proceedings  , DOI: ( /j.mayocp )
Copyright © 2018 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Figure 2
Illustration of symptoms that can be addressed in amyotrophic lateral sclerosis.
Mayo Clinic Proceedings  , DOI: ( /j.mayocp )
Copyright © 2018 Mayo Foundation for Medical Education and Research Terms and Conditions