Group-averaged IL-10 levels (in pg/ml) from the Luminex assay for control, CFS with FM, and CFS without FM groups. Group-averaged IL-10 levels (in pg/ml) from the Luminex assay for control, CFS with FM, and CFS without FM groups. The error bars indicate standard errors of means. *, significant difference from control; †, significant difference between CFS with FM and CFS without FM. Note that the statistical tests were conducted with logarithmic-transformed data. Toru Nakamura et al. Clin. Vaccine Immunol. 2010; doi:10.1128/CVI.00379-09