[Dynamics of vitamin B12 in the aged].
D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010525:Peripheral Nerves / Q000502:physiology; D051381:Rats; D014805:Vitamin B 12 / Q000378:metabolism* / Q000502:physiology
D014805:Vitamin B 12