On the presence of a deficiency factor in the pathogenesis of amyotrophic lateral sclerosis.
D000690:Amyotrophic Lateral Sclerosis / Q000209:etiology*; D006296:Health Services; D006801:Humans; D009748:Nutrition Disorders / Q000150:complications*; D009752:Nutritional Status
AMYOTROPHIC LATERAL SCLEROSIS/etiology and pathogenesis; NUTRITION DISORDERS/complications