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- [36] NOTE ON THE EFFECT OF DIETARY ZINC ON BETA-CAROTENE CONVERSION TO VITAMIN-A INDIAN JOURNAL OF ANIMAL SCIENCES, 1980, 50 (10): : 879 - 881
- [38] EFFECT OF ZINC OR COPPER STATUS ON THE CONVERSION OF BETA-CAROTENE TO VITAMIN-A FASEB JOURNAL, 1991, 5 (05): : A1321 - A1321