Rheumatology International

, Volume 36, Issue 5, pp 741–742 | Cite as

Serum levels of vitamin B12 (cobalamin) in fibromyalgia

  • Jozélio Freire de Carvalho
  • Daisy Naiana Freitas Silva
Food for Thought

Notes

Acknowledgments

This study was funded by CNPq and Federico Foundation.

Compliance with ethical standards

Conflict of interest

Authors A and B declare that he/she has no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Rheumatology DivisionAliança Medical CenterSalvadorBrazil
  2. 2.Rheumatology DivisionSOS Vida Outpatient ClinicSalvadorBrazil
  3. 3.Federal University of BahiaSalvadorBrazil

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