evidencegaps
Primary study · included by 1 review

Oral versus intramuscular administration of vitamin B12 for vitamin B12 deficiency in primary care: a pragmatic, randomised, non-inferiority clinical trial (OB12).

Sanz-Cuesta 2020 · Sanz-Cuesta Teresa, Escortell-Mayor Esperanza, Cura-Gonzalez Isabel, et al. · BMJ open · 2020

Included by

Efficacy of sublingual and oral vitamin B12 versus intramuscular administration: insights from a systematic review and meta-analysis.
Non-Cochrane · intervention · 2025 · cited as Sanz-Cuesta 2020 · Table 2; References

The review does not say which of its outcomes this study informs.

1 including review in total.