title: Letter: Folate radioassay.
mesh_terms: D000818:Animals; D001665:Binding Sites; D001798:Blood Proteins; D005069:Evaluation Studies as Topic; D005492:Folic Acid / Q000097:blood*; D006801:Humans; D008722:Methods; D008892:Milk; D011485:Protein Binding; D011869:Radioligand Assay; D014316:Tritium
chemical_list: D001798:Blood Proteins; D014316:Tritium; D005492:Folic Acid