#MedEd Quiz: Which one of the following statements about amyotrophic lateral sclerosis (ALS) is true?
A. Of persons with ALS, 15 to 20% have progressive cognitive abnormalities marked by behavioral changes, leading to dementia.
B. ALS typically begins with difficulty chewing, speaking, or swallowing.
C. Neurons that innervate the eye muscles are involved early in the disease.
D. The flail-arm...
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Amyotrophic Lateral Sclerosis | NEJM Resident 360