Serum vitamin B12 values in relation to functional B12 deficiency.
D000752:Anemia, Pernicious / Q000097:blood*; D004912:Erythrocytes / Q000378:metabolism; D004920:Erythropoiesis; D005492:Folic Acid / Q000097:blood; D005743:Gastrectomy; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D014805:Vitamin B 12 / Q000097:blood*; D014806:Vitamin B 12 Deficiency / Q000097:blood*
D006454:Hemoglobins; D005492:Folic Acid; D014805:Vitamin B 12