Folic-acid deficiency in elderly patients admitted to hospital.
D000368:Aged; D001769:Blood; D001856:Bone Marrow Examination; D004032:Diet; D005365:FIGLU Test; D005223:Fats / Q000378:metabolism; D005494:Folic Acid Deficiency / Q000453:epidemiology* / Q000209:etiology*; D006801:Humans; D007408:Intestinal Absorption; D007958:Leukocyte Count; D008131:London
D005223:Fats