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- [9] INCORPORATION OF PURINE BASES INTO VITAMIN B12 MOLECULE AGRICULTURAL AND BIOLOGICAL CHEMISTRY, 1969, 33 (08): : 1207 - &
- [10] EFFECT OF HYDROLYSED GLUCOSE CYCLOACETOACETATE ON VITAMIN B12 ACTIVITY IN LACTOBACILLUS LEICHMANNII JOURNAL OF VITAMINOLOGY, 1969, 15 (03): : 208 - &