| SPME | Solid Phase Micro-Extraction |
|---|---|
| SPMI | severe and persistent mental illness |
| SPMSQ | Short Portable Mental Status Questionnaire |
| SPN | solitary pulmonary nodule |
| SPN | Streptococcus pneumoniae |
| SPN | Sympathetic preganglionic neuron |
| SPN | sacral parasympathetic nucleus |
| SpO2 | measure by pulse oximetry |
| SPO2 | saturation by pulse oximetry |
| SPP | Sphingosine 1-phosphate |