Vitamin B status of geriatric patients.
D000367:Age Factors; D000368:Aged; D000818:Animals; D006801:Humans; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements; D051381:Rats; D014803:Vitamin B Complex; D014804:Vitamin B Deficiency / Q000453:epidemiology*
D014803:Vitamin B Complex