| 5-HT | serotonin |
| ANS | autonomic nervous system |
| ATP | adenosine triphosphate |
| CNS | central nervous system |
| ESR | erythrocyte sedimentation rate |
| FM | Fibromyalgia |
| Hb | Hemoglobin |
| HT | hematocrit |
| IL | Interleukin |
| MCHC | mean corpuscular hemoglobin concentration |
| NLR | neutrophil leukocyte ratio |
| NO | nitric oxide |
| O2 | oxygen |
| PLR | platelet leukocyte ratio |
| RBC | red blood cell |
| SIRI | systemic inflammatory index |
| TNF | tumor necrosis factor |