| SOA-MCA | superficial occipital artery to middle cerebral artery |
|---|---|
| SPK | serum pyruvate kinase; superficial punctate keratitis |
| SSM | subsynaptic membrane; superficial spreading melanoma |
| STA | second trimester abortion; serum thrombotic accelerator; superficial temporal artery |
| STA-MCA | superficial temporal artery to middle cerebral artery |