Ascorbic acid deficiency in the elderly.
D000328:Adult; D000368:Aged; D001206:Ascorbic Acid Deficiency / Q000453:epidemiology*; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007494:Ireland; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D012424:Rural Population; D014505:Urban Population