Anterior horn cell degeneration.
D000690:Amyotrophic Lateral Sclerosis / Q000209:etiology / Q000235:genetics; D000870:Anterior Horn Cells; D005260:Female; D006801:Humans; D008297:Male; D009046:Motor Neurons; D009410:Nerve Degeneration; D012737:Sex Factors; D013116:Spinal Cord