Influence of abode and season on the vitamin C status of the elderly.
D000328:Adult; D000368:Aged; D001205:Ascorbic Acid / Q000032:analysis* / Q000097:blood*; D004032:Diet; D005504:Food Analysis; D006801:Humans; D007962:Leukocytes / Q000032:analysis*; D008875:Middle Aged; D012621:Seasons
D001205:Ascorbic Acid