It's just a vitamin...
Berliner
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D000740:Anemia / Q000097:blood*; D000748:Anemia, Macrocytic / Q000097:blood*; D005492:Folic Acid / Q000097:blood* / Q000627:therapeutic use*; D006801:Humans; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000188:drug therapy*
D005492:Folic Acid