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However, cases of concomitant deficiencies involving B 12 with either B 1 or B 6 remain rare, suggesting distinct risk factors and clinical presentations for each vitamin deficiency

Worse, repeated cortisone injections can actually weaken tendons and cartilage over time

Absence of COA documentation or refusal to provide batch-specific testing results suggests inadequate quality control

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10.1186/s13018-019-1242-6 54 PetrovicI.DobricI.DrmicD.SeverM.KlicekR.RadicB.et al (2011)