Microbiological and radioimmunological assays for folic acid in whole blood compared: effect of zinc nutriture.
D000328:Adult; D004032:Diet; D005188:False Negative Reactions; D005492:Folic Acid / Q000097:blood*; D006801:Humans; D008297:Male; D011863:Radioimmunoassay; D015032:Zinc / Q000008:administration & dosage*
D005492:Folic Acid; D015032:Zinc