| SPA | Scintillation Proximity Assay |
|---|---|
| SPA | Sheep Pulmonary Adenomatosis |
| SPA | Single Photon Absorptiometry |
| SPA | Sperm Penetration Assay |
| SpA | Spondylarthropathies |
| SpA | Spondyloarthropathy |
| SPA | Spontaneous Platelet Aggregation |
| SPA | Spontaneous physical activity |
| SpA | Staphylococal protein A |
| SPA | Staphylococcus Protein A |