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- [4] ESTIMATION OF VITAMIN B12 IN SERUM BY RADIOISOTOPIC DILUTION COMPTES RENDUS DES SEANCES DE LA SOCIETE DE BIOLOGIE ET DE SES FILIALES, 1968, 162 (02): : 514 - &
- [5] RADIOISOTOPIC ASSAY OF VITAMIN-B12 - REPLY BLOOD-THE JOURNAL OF HEMATOLOGY, 1970, 35 (02): : 290 - &
- [8] RADIOISOTOPIC METHOD FOR VITAMIN-B12 ASSAY IN PHARMACEUTICAL PREPARATIONS FARMACO-EDIZIONE PRATICA, 1973, 28 (07): : 388 - 395
- [9] Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency COCHRANE DATABASE OF SYSTEMATIC REVIEWS, 2005, (03):
- [10] Oral vitamin B12 versus intramuscular vitamin B12, for vitamin B12 deficiency COCHRANE DATABASE OF SYSTEMATIC REVIEWS, 2018, (03):