evidencegaps
Primary study · included by 1 review

Comparing the efficacy and tolerability of a new daily oral vitamin B12 formulation and intermittent intramuscular vitamin B12 in normalizing low cobalamin levels: a randomized, open-label, parallel-group study.

Castelli 2011 · Castelli M Cristina, Friedman Kristen, Sherry James, et al. · Clinical therapeutics · 2011

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 Castelli 2011 · Table 2; References

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

1 including review in total.