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Inclusion and Exclusion Criteria.
| Inclusion Criteria | Exclusion Criteriaa |
|---|---|
| Physician-diagnosed fibromyalgia | Current use of steroids or use of these drugs within the past 3 months |
| Current age between 18–64 years | Currently pregnant (women) |
| Ability to speak and write in English |
The two exclusion criteria were relevant only to the quantitative component of the study assessing the immune cells (Taylor et al., 2015) but were necessarily applied to all participants.
