id	keyword
gra-1405	deciency
gra-1405	vitamin
gra-1405	folate
gra-1405	b12
gra-1405	google
gra-1405	anemia
gra-1405	scholar
gra-1405	patients
gra-1405	levels
gra-1405	google scholar
gra-1405	macrocytosis
gra-1405	blood
gra-1405	marrow
gra-1405	serum