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infantile muscular atrophy in Medicine

infantile muscular atrophy

n.
  1. Progressive muscular wasting due to degeneration of motor neurons in the anterior horns of the spinal cord, with onset usually in the first year of life.familial spinal muscular atrophy infantile progressive spinal muscular atrophy
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.