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Society of Thoracic Surgeons.
Abbreviation for serologic test for syphilis.
abbreviation for sit-to-stand.
STSA gene on chromosome Xp22.32 that encodes a protein that catalyses the conversion of sulfated steroid precursors to oestrogens during pregnancy.
Defects in STS cause ichthyosis, X-linked.
1. Serologic tests for syphilis, see there.
2. Soft tissue sarcoma, see there.