Mexican "resistance" to amyotrophic lateral sclerosis.
D000328:Adult; D000367:Age Factors; D000368:Aged; D000690:Amyotrophic Lateral Sclerosis / Q000453:epidemiology* / Q000401:mortality; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007198:Indians, North American; D008297:Male; D008800:Mexico; D008875:Middle Aged; D012737:Sex Factors; D044465:White People