Vitamin B12 deficiency in older people: improving diagnosis and preventing disability.
Stabler
S P
SP
D000368:Aged; D000369:Aged, 80 and over; D003072:Cognition Disorders / Q000209:etiology; D006801:Humans; D008764:Methylmalonic Acid / Q000097:blood; D014805:Vitamin B 12 / Q000097:blood / Q000627:therapeutic use*; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000150:complications / Q000175:diagnosis*
D008764:Methylmalonic Acid; D014805:Vitamin B 12