Amyotrophic lateral sclerosis.
D000690:Amyotrophic Lateral Sclerosis / Q000473:pathology*; D006801:Humans; D009134:Muscular Atrophy, Spinal / Q000473:pathology*; D013116:Spinal Cord / Q000473:pathology*
AMYOTROPHIC LATERAL SCLEROSIS/pathology; PROGRESSIVE MUSCULAR ATROPHY/pathology; SPINAL CORD/pathology