Muscular weakness and atrophy related to loss of the motor neurons of the spinal cord and brainstem. [https://orcid.org/0000-0002-0736-9199]

Spinal muscular atrophy (SMA) is a rare neuromuscular disorder that results in the loss of motor neurons and progressive muscle wasting. It is usually diagnosed in infancy or early childhood and if left untreated it is the most common genetic cause of infant death...