b12 deficiency injection schedule Optimal Vitamin Dosage and Treating How Often Should You Get
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Available from: 2 Knezevic NN, Mandalia S, Raasch J, Knezevic I, Candido KD

Wainwright P, Narayanan S, Cook P Clinical biochemistry 2015

Although results can vary from person to person, multiple injections are required to achieve optimal results

Maybe even a deep salmon color that looks nothing like what they imagined