is injectable b12 prescription only Cyanocobalamin (B12) Injection 1000 mcg/mL, Multiple Dose Vial 30 mL Why Your Vitamin B12 Injection
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doi: 10.1016/0092-8674(94)90006-x
Advances in Food and Nutrition Research
Guan XH, Liu XH, Hong X, Zhao N, Xiao YF, Wang LF, et al
During this period, no adverse effects emerged with continued use
