title: Comment on Gellekink et al.
authors: Gavin
authors: G
authors: Willis
mesh_terms: D006801:Humans; D011110:Polymorphism, Genetic; D011401:Promoter Regions, Genetic; D013762:Tetrahydrofolate Dehydrogenase / Q000235:genetics*
chemical_list: D013762:Tetrahydrofolate Dehydrogenase