Serum levels of vitamin B12 (cobalamin) in fibromyalgia
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KeywordsFerritin Homocysteine Fibromyalgia Chronic Fatigue Syndrome Cobalamin
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.
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 was obtained from all individual participants included in the study.
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